[Pkg-javascript-commits] [node-socket.io-client] 01/02: Imported Upstream version 1.3.5
Sebastiaan Couwenberg
sebastic at moszumanska.debian.org
Sat Mar 28 20:29:26 UTC 2015
This is an automated email from the git hooks/post-receive script.
sebastic pushed a commit to branch master
in repository node-socket.io-client.
commit 8213ce1eebbba52c1beb6440781c60516ad2c525
Author: Bas Couwenberg <sebastic at xs4all.nl>
Date: Sat Mar 28 19:46:39 2015 +0100
Imported Upstream version 1.3.5
---
.gitignore | 2 +
.npmignore | 7 +
.travis.yml | 38 +
.zuul.yml | 19 +
History.md | 386 +++
LICENSE | 22 +
Makefile | 36 +
README.md | 173 ++
index.js | 2 +
lib/index.js | 87 +
lib/manager.js | 503 ++++
lib/on.js | 24 +
lib/socket.js | 385 +++
lib/url.js | 73 +
package.json | 63 +
socket.io.js | 7000 ++++++++++++++++++++++++++++++++++++++++++++++++
support/browserify.js | 41 +
support/browserify.sh | 6 +
test/connection.js | 506 ++++
test/index.js | 19 +
test/socket.js | 45 +
test/support/env.js | 6 +
test/support/server.js | 131 +
test/url.js | 61 +
24 files changed, 9635 insertions(+)
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7bbe1a3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/node_modules
+/coverage
diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..0f2c007
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,7 @@
+test
+support
+.gitignore
+.npmignore
+.travis.yml
+.zuul.yml
+Makefile
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..7de5d96
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,38 @@
+language: node_js
+node_js:
+- '0.10'
+sudo: false
+notifications:
+ irc: irc.freenode.org#socket.io
+matrix:
+ include:
+ - node_js: '0.10'
+ env: BROWSER_NAME=chrome BROWSER_VERSION=latest
+ - node_js: '0.10'
+ env: BROWSER_NAME=safari BROWSER_VERSION=latest
+ - node_js: '0.10'
+ env: BROWSER_NAME=ie BROWSER_VERSION=6
+ - node_js: '0.10'
+ env: BROWSER_NAME=ie BROWSER_VERSION=7
+ - node_js: '0.10'
+ env: BROWSER_NAME=ie BROWSER_VERSION=8
+ - node_js: '0.10'
+ env: BROWSER_NAME=ie BROWSER_VERSION=9
+ - node_js: '0.10'
+ env: BROWSER_NAME=ie BROWSER_VERSION=10 BROWSER_PLATFORM="Windows 2012"
+ - node_js: '0.10'
+ env: BROWSER_NAME=ie BROWSER_VERSION=latest BROWSER_PLATFORM="Windows 2012"
+ - node_js: '0.10'
+ env: BROWSER_NAME=iphone BROWSER_VERSION=6.1
+ - node_js: '0.10'
+ env: BROWSER_NAME=iphone BROWSER_VERSION=7.1
+ - node_js: '0.10'
+ env: BROWSER_NAME=android BROWSER_VERSION=4.0
+ - node_js: '0.10'
+ env: BROWSER_NAME=android BROWSER_VERSION=4.1
+ - node_js: '0.10'
+ env: BROWSER_NAME=android BROWSER_VERSION=4.2
+ - node_js: '0.10'
+ env: BROWSER_NAME=android BROWSER_VERSION=4.3
+ - node_js: '0.10'
+ env: BROWSER_NAME=android BROWSER_VERSION=4.4
diff --git a/.zuul.yml b/.zuul.yml
new file mode 100644
index 0000000..97c7b00
--- /dev/null
+++ b/.zuul.yml
@@ -0,0 +1,19 @@
+ui: mocha-bdd
+server: ./test/support/server.js
+browsers:
+ - name: chrome
+ version: 29..latest
+ - name: firefox
+ version: latest
+ - name: safari
+ version: latest
+ - name: ie
+ version: 10
+ platform: Windows 2012
+ - name: ie
+ version: [6..9, latest]
+ - name: iphone
+ version: 6.0..latest
+ - name: android
+ version: oldest..latest
+ version: 5.1
diff --git a/History.md b/History.md
new file mode 100644
index 0000000..ac6110b
--- /dev/null
+++ b/History.md
@@ -0,0 +1,386 @@
+
+1.3.5 / 2015-03-03
+==================
+
+ * package: bump parser
+
+1.3.4 / 2015-02-14
+==================
+
+ * build `socket.io.js` with `engine.io-client` `1.5.1`
+
+1.3.3 / 2015-02-03
+==================
+
+ * package: bump parser
+
+1.3.2 / 2015-01-19
+==================
+
+ * build `socket.io.js`
+
+1.3.1 / 2015-01-19
+==================
+
+ * no change on this release
+ * package: bump `engine.io-client` to not depend on `git(1)` for a dep
+
+1.3.0 / 2015-01-19
+==================
+
+ * package: bump `engine.io-client`
+ * added `socket.id` property pointing to session id [rase-]
+ * fix url parsing when uri string is undefined [defunctzombie]
+ * implemented `backo` for exponential backoff with randomization [mokesmokes]
+ * reset reconnection attempts state after a successul connection [mokesmokes]
+
+1.2.1 / 2014-11-21
+==================
+
+ * package: bump `engine.io-client`
+ * README: fixes to prevent duplicate events [nkzawa]
+ * fix reconnection after reconnecting manually [nkzawa]
+ * make ACK callbacks idempotent [thexeos]
+ * package: bump `uglify-js`
+
+1.2.0 / 2014-10-27
+==================
+
+ * bump `engine.io-client`.
+ * set `readyState` before engine.io close event
+ * fix reconnection after reconnecting manually
+ * enable to stop reconnecting
+ * downloads badge
+ * support no schema relative url
+ * enable to reconnect manually
+
+1.1.0 / 2014-09-04
+==================
+
+ * socket: fix in `has-binary`
+ * package: bump `socket.io-parser`
+ * package: bump `engine.io-client`
+ * further increase test timeout.
+ * double to singly quotes in tests.
+ * extend timeout and remember to close everything in each test case
+ * fix travis
+ * add travis + zuul matrix
+ * use svg instead of png to get better image quality in readme
+ * make CI build faster
+ * removed unnecessary code from try block. Only decode packet is needed.
+ * package: bump `browserify`
+ * package: bump `engine.io-client`
+ * fix autoConnect option
+ * npmignore: ignore `.gitignore`
+ * package: update `browserify`
+ * don't fire an extra reconnect when we're not reconnecting
+ after a failed initial connect attempt
+ * package: bump `socket.io-parser` for `component-emitter` dep fix
+ * updated tests to reflect `autoConnect` option
+ * add `autoConnect` option to wait with connecting
+
+1.0.6 / 2014-06-19
+==================
+
+ * test fixes on internet explorer
+ * fixes for duplicate event propagation from manager instance [Rase-]
+
+1.0.5 / 2014-06-16
+==================
+
+ * package: bump `engine.io-client` for better deps and smaller build
+ * handle io.connect(null, opts) correctly [audreyt]
+ * url: fix incorrect ports in certain connections [holic]
+ * manager: propagate all reconnection events to sockets [Rase-]
+ * index: added BC for `force new connection`
+ * socket: fix event buffering while in disconnected state [kevin-roark]
+ * package: stop using tarballs in dependencies [reid]
+ * manager: relay `connect_error` and `connect_timeout` to sockets
+
+1.0.4 / 2014-06-02
+==================
+
+ * update build
+
+1.0.3 / 2014-05-31
+==================
+
+ * package; bump `socket.io-parser` for binary ACK fix
+ * package: bump `engine.io-client` for binary UTF8 fix
+
+1.0.2 / 2014-05-28
+==================
+
+ * package: bump `socket.io-parser` for windows fix
+
+1.0.1 / 2014-05-28
+==================
+
+ * override npm tag
+
+1.0.0 / 2014-05-28
+==================
+
+ * stable release
+
+1.0.0-pre5 / 2014-05-22
+=======================
+
+ * package: bump `engine.io-client` for parser fixes
+
+1.0.0-pre4 / 2014-05-19
+=======================
+
+ * build
+
+1.0.0-pre3 / 2014-05-17
+=======================
+
+ * package: bump parser
+ * package: bump engine.io-client
+
+1.0.0-pre2 / 2014-04-27
+=======================
+
+ * package: bump `engine.io-client`
+ * package: bump `zuul`
+ * allows user-level query string parameters to be in socket.request
+ * package: bump `socket.io-parser`
+ * package: bump `engine.io-client` for android fix
+ * tidy up .gitignore
+
+1.0.0-pre / 2014-03-14
+======================
+
+ * implemented `engine.io-client`
+ * implemented `socket.io-parser`
+ * implemented `json3` to avoid env pollution
+ * implemented `debug`
+ * added binary support
+ * added `browserify` support
+
+0.9.11 / 2012-11-02
+===================
+
+ * Enable use of 'xhr' transport in Node.js
+ * Fix the problem with disconnecting xhr-polling users
+ * Add should to devDependencies
+ * Prefer XmlHttpRequest if CORS is available
+ * Make client compatible with AMD loaders.
+
+0.9.10 / 2012-08-10
+===================
+
+ * fix removeAllListeners to behave as expected.
+ * set withCredentials to true only if xdomain.
+ * socket: disable disconnect on unload by default.
+
+0.9.9 / 2012-08-01
+==================
+
+ * socket: fixed disconnect xhr url and made it actually sync
+ * *: bump xmlhttprequest dep
+
+0.9.8 / 2012-07-24
+==================
+
+ * Fixed build.
+
+0.9.7 / 2012-07-24
+==================
+
+ * iOS websocket crash fix.
+ * Fixed potential `open` collision.
+ * Fixed disconnectSync.
+
+0.9.6 / 2012-04-17
+==================
+
+ * Don't position the jsonp form off the screen (android fix).
+
+0.9.5 / 2012-04-05
+==================
+
+ * Bumped version.
+
+0.9.4 / 2012-04-01
+==================
+
+ * Fixes polling loop upon reconnect advice (fixes #438).
+
+0.9.3 / 2012-03-28
+==================
+
+ * Fix XHR.check, which was throwing an error transparently and causing non-IE browsers to fall back to JSONP [mikito]
+ * Fixed forced disconnect on window close [zzzaaa]
+
+0.9.2 / 2012-03-13
+==================
+
+ * Transport order set by "options" [zzzaaa]
+
+0.9.1-1 / 2012-03-02
+====================
+
+ * Fixed active-x-obfuscator NPM dependency.
+
+0.9.1 / 2012-03-02
+==================
+
+ * Misc corrections.
+ * Added warning within Firefox about webworker test in test runner.
+ * Update ws dependency [einaros]
+ * Implemented client side heartbeat checks. [felixge]
+ * Improved Firewall support with ActiveX obfuscation. [felixge]
+ * Fixed error handling during connection process. [Outsideris]
+
+0.9.0 / 2012-02-26
+==================
+
+ * Added DS_Store to gitignore.
+ * Updated depedencies.
+ * Bumped uglify
+ * Tweaking code so it doesn't throw an exception when used inside a WebWorker in Firefox
+ * Do not rely on Array.prototype.indexOf as it breaks with pages that use the Prototype.js library.
+ * Windows support landed
+ * Use @einaros ws module instead of the old crap one
+ * Fix for broken closeTimeout and 'IE + xhr' goes into infinite loop on disconnection
+ * Disabled reconnection on error if reconnect option is set to false
+ * Set withCredentials to true before xhr to fix authentication
+ * Clears the timeout from reconnection attempt when there is a successful or failed reconnection.
+ This fixes the issue of setTimeout's carrying over from previous reconnection
+ and changing (skipping) values of self.reconnectionDelay in the newer reconnection.
+ * Removed decoding of parameters when chunking the query string.
+ This was used later on to construct the url to post to the socket.io server
+ for connection and if we're adding custom parameters of our own to this url
+ (for example for OAuth authentication) they were being sent decoded, which is wrong.
+
+0.8.7 / 2011-11-05
+==================
+
+ * Bumped client
+
+0.8.6 / 2011-10-27
+==================
+
+ * Added WebWorker support.
+ * Fixed swfobject and web_socket.js to not assume window.
+ * Fixed CORS detection for webworker.
+ * Fix `defer` for webkit in a webworker.
+ * Fixed io.util.request to not rely on window.
+ * FIxed; use global instead of window and dont rely on document.
+ * Fixed; JSON-P handshake if CORS is not available.
+ * Made underlying Transport disconnection trigger immediate socket.io disconnect.
+ * Fixed warning when compressing with Google Closure Compiler.
+ * Fixed builder's uglify utf-8 support.
+ * Added workaround for loading indicator in FF jsonp-polling. [3rd-Eden]
+ * Fixed host discovery lookup. [holic]
+ * Fixed close timeout when disconnected/reconnecting. [jscharlach]
+ * Fixed jsonp-polling feature detection.
+ * Fixed jsonp-polling client POSTing of \n.
+ * Fixed test runner on IE6/7
+
+0.8.5 / 2011-10-07
+==================
+
+ * Bumped client
+
+0.8.4 / 2011-09-06
+==================
+
+ * Corrected build
+
+0.8.3 / 2011-09-03
+==================
+
+ * Fixed `\n` parsing for non-JSON packets.
+ * Fixed; make Socket.IO XHTML doctype compatible (fixes #460 from server)
+ * Fixed support for Node.JS running `socket.io-client`.
+ * Updated repository name in `package.json`.
+ * Added support for different policy file ports without having to port
+ forward 843 on the server side [3rd-Eden]
+
+0.8.2 / 2011-08-29
+==================
+
+ * Fixed flashsocket detection.
+
+0.8.1 / 2011-08-29
+==================
+
+ * Bump version.
+
+0.8.0 / 2011-08-28
+==================
+
+ * Added MozWebSocket support (hybi-10 doesn't require API changes) [einaros].
+
+0.7.11 / 2011-08-27
+===================
+
+ * Corrected previous release (missing build).
+
+0.7.10 / 2011-08-27
+===================
+
+ * Fix for failing fallback in websockets
+
+0.7.9 / 2011-08-12
+==================
+
+ * Added check on `Socket#onConnect` to prevent double `connect` events on the main manager.
+ * Fixed socket namespace connect test. Remove broken alternative namespace connect test.
+ * Removed test handler for removed test.
+ * Bumped version to match `socket.io` server.
+
+0.7.5 / 2011-08-08
+==================
+
+ * Added querystring support for `connect` [3rd-Eden]
+ * Added partial Node.JS transports support [3rd-Eden, josephg]
+ * Fixed builder test.
+ * Changed `util.inherit` to replicate Object.create / __proto__.
+ * Changed and cleaned up some acceptance tests.
+ * Fixed race condition with a test that could not be run multiple times.
+ * Added test for encoding a payload.
+ * Added the ability to override the transport to use in acceptance test [3rd-Eden]
+ * Fixed multiple connect packets [DanielBaulig]
+ * Fixed jsonp-polling over-buffering [3rd-Eden]
+ * Fixed ascii preservation in minified socket.io client [3rd-Eden]
+ * Fixed socket.io in situations where the page is not served through utf8.
+ * Fixed namespaces not reconnecting after disconnect [3rd-Eden]
+ * Fixed default port for secure connections.
+
+0.7.4 / 2011-07-12
+==================
+
+ * Added `SocketNamespace#of` shortcut. [3rd-Eden]
+ * Fixed a IE payload decoding bug. [3rd-Eden]
+ * Honor document protocol, unless overriden. [dvv]
+ * Fixed new builder dependencies. [3rd-Eden]
+
+0.7.3 / 2011-06-30
+==================
+
+ * Fixed; acks don't depend on arity. They're automatic for `.send` and
+ callback based for `.emit`. [dvv]
+ * Added support for sub-sockets authorization. [3rd-Eden]
+ * Added BC support for `new io.connect`. [fat]
+ * Fixed double `connect` events. [3rd-Eden]
+ * Fixed reconnection with jsonp-polling maintaining old sessionid. [franck34]
+
+0.7.2 / 2011-06-22
+==================
+
+ * Added `noop` message type.
+
+0.7.1 / 2011-06-21
+==================
+
+ * Bumped socket.io dependency version for acceptance tests.
+
+0.7.0 / 2011-06-21
+==================
+
+ * http://socket.io/announcement.html
+
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..9338df1
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Guillermo Rauch
+
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c002473
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,36 @@
+
+REPORTER = dot
+
+build: socket.io.js
+
+socket.io.js: lib/*.js package.json
+ @./support/browserify.sh > socket.io.js
+
+test:
+ @if [ "x$(BROWSER_NAME)" = "x" ]; then make test-node; else make test-zuul; fi
+
+test-node:
+ @./node_modules/.bin/mocha \
+ --reporter $(REPORTER) \
+ test/index.js
+
+test-zuul:
+ @if [ "x$(BROWSER_PLATFORM)" = "x" ]; then \
+ ./node_modules/zuul/bin/zuul \
+ --browser-name $(BROWSER_NAME) \
+ --browser-version $(BROWSER_VERSION) \
+ test/index.js; \
+ else \
+ ./node_modules/zuul/bin/zuul \
+ --browser-name $(BROWSER_NAME) \
+ --browser-version $(BROWSER_VERSION) \
+ --browser-platform "$(BROWSER_PLATFORM)" \
+ test/index.js; \
+ fi
+
+test-cov:
+ @./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha -- \
+ --reporter $(REPORTER) \
+ test/
+
+.PHONY: test
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..477981c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,173 @@
+
+# socket.io-client
+
+[](http://travis-ci.org/Automattic/socket.io-client)
+
+
+
+## How to use
+
+A standalone build of `socket.io-client` is exposed automatically by the
+socket.io server as `/socket.io/socket.io.js`. Alternatively you can
+serve the file `socket.io.js` found at the root of this repository.
+
+```html
+<script src="/socket.io/socket.io.js"></script>
+<script>
+ var socket = io('http://localhost');
+ socket.on('connect', function(){});
+ socket.on('event', function(data){});
+ socket.on('disconnect', function(){});
+</script>
+```
+
+Socket.IO is compatible with [browserify](http://browserify.org/).
+
+### Node.JS (server-side usage)
+
+ Add `socket.io-client` to your `package.json` and then:
+
+ ```js
+ var socket = require('socket.io-client')('http://localhost');
+ socket.on('connect', function(){});
+ socket.on('event', function(data){});
+ socket.on('disconnect', function(){});
+ ```
+
+## API
+
+### IO(url:String, opts:Object):Socket
+
+ Exposed as the `io` namespace in the standalone build, or the result
+ of calling `require('socket.io-client')`.
+
+ When called, it creates a new `Manager` for the given URL, and attempts
+ to reuse an existing `Manager` for subsequent calls, unless the
+ `multiplex` option is passed with `false`.
+
+ The rest of the options are passed to the `Manager` constructor (see below
+ for details).
+
+ A `Socket` instance is returned for the namespace specified by the
+ pathname in the URL, defaulting to `/`. For example, if the `url` is
+ `http://localhost/users`, a transport connection will be established to
+ `http://localhost` and a Socket.IO connection will be established to
+ `/users`.
+
+### IO#protocol
+
+ Socket.io protocol revision number this client works with.
+
+### IO#Socket
+
+ Reference to the `Socket` constructor.
+
+### IO#Manager
+
+ Reference to the `Manager` constructor.
+
+### IO#Emitter
+
+ Reference to the `Emitter` constructor.
+
+### Manager(url:String, opts:Object)
+
+ A `Manager` represents a connection to a given Socket.IO server. One or
+ more `Socket` instances are associated with the manager. The manager
+ can be accessed through the `io` property of each `Socket` instance.
+
+ The `opts` are also passed to `engine.io` upon initialization of the
+ underlying `Socket`.
+
+ Options:
+ - `reconnection` whether to reconnect automatically (`true`)
+ - `reconnectionAttempts` (`Infinity`) before giving up
+ - `reconnectionDelay` how long to initially wait before attempting a new
+ reconnection (`1000`). Affected by +/- `randomizationFactor`,
+ for example the default initial delay will be between 500 to 1500ms.
+ - `reconnectionDelayMax` maximum amount of time to wait between
+ reconnections (`5000`). Each attempt increases the reconnection delay by 2x
+ along with a randomization as above
+ - `randomizationFactor(`0.5`), 0 <= randomizationFactor <= 1
+ - `timeout` connection timeout before a `connect_error`
+ and `connect_timeout` events are emitted (`20000`)
+ - `autoConnect` by setting this false, you have to call `manager.open`
+ whenever you decide it's appropriate
+
+#### Events
+
+ - `connect`. Fired upon a successful connection.
+ - `connect_error`. Fired upon a connection error.
+ Parameters:
+ - `Object` error object
+ - `connect_timeout`. Fired upon a connection timeout.
+ - `reconnect`. Fired upon a successful reconnection.
+ Parameters:
+ - `Number` reconnection attempt number
+ - `reconnect_attempt`. Fired upon an attempt to reconnect.
+ - `reconnecting`. Fired upon an attempt to reconnect.
+ Parameters:
+ - `Number` reconnection attempt number
+ - `reconnect_error`. Fired upon a reconnection attempt error.
+ Parameters:
+ - `Object` error object
+ - `reconnect_failed`. Fired when couldn't reconnect within `reconnectionAttempts`
+
+The events above are also emitted on the individual sockets that
+reconnect that depend on this `Manager`.
+
+### Manager#reconnection(v:Boolean):Manager
+
+ Sets the `reconnection` option, or returns it if no parameters
+ are passed.
+
+### Manager#reconnectionAttempts(v:Boolean):Manager
+
+ Sets the `reconnectionAttempts` option, or returns it if no parameters
+ are passed.
+
+### Manager#reconnectionDelay(v:Boolean):Manager
+
+ Sets the `reconectionDelay` option, or returns it if no parameters
+ are passed.
+
+### Manager#reconnectionDelayMax(v:Boolean):Manager
+
+ Sets the `reconectionDelayMax` option, or returns it if no parameters
+ are passed.
+
+### Manager#timeout(v:Boolean):Manager
+
+ Sets the `timeout` option, or returns it if no parameters
+ are passed.
+
+### Socket
+
+#### Socket#id:String
+
+A property on the `socket` instance that is equal to the underlying engine.io socket id.
+
+The property is present once the socket has connected, is removed when the socket disconnects and is updated if the socket reconnects.
+
+#### Events
+
+ - `connect`. Fired upon a connection including a successful reconnection.
+ - `error`. Fired upon a connection error
+ Parameters:
+ - `Object` error data
+ - `disconnect`. Fired upon a disconnection.
+ - `reconnect`. Fired upon a successful reconnection.
+ Parameters:
+ - `Number` reconnection attempt number
+ - `reconnect_attempt`. Fired upon an attempt to reconnect.
+ - `reconnecting`. Fired upon an attempt to reconnect.
+ Parameters:
+ - `Number` reconnection attempt number
+ - `reconnect_error`. Fired upon a reconnection attempt error.
+ Parameters:
+ - `Object` error object
+ - `reconnect_failed`. Fired when couldn't reconnect within `reconnectionAttempts`
+
+## License
+
+[MIT](/LICENSE)
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..887727f
--- /dev/null
+++ b/index.js
@@ -0,0 +1,2 @@
+
+module.exports = require('./lib/');
diff --git a/lib/index.js b/lib/index.js
new file mode 100644
index 0000000..17d81f1
--- /dev/null
+++ b/lib/index.js
@@ -0,0 +1,87 @@
+
+/**
+ * Module dependencies.
+ */
+
+var url = require('./url');
+var parser = require('socket.io-parser');
+var Manager = require('./manager');
+var debug = require('debug')('socket.io-client');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = lookup;
+
+/**
+ * Managers cache.
+ */
+
+var cache = exports.managers = {};
+
+/**
+ * Looks up an existing `Manager` for multiplexing.
+ * If the user summons:
+ *
+ * `io('http://localhost/a');`
+ * `io('http://localhost/b');`
+ *
+ * We reuse the existing instance based on same scheme/port/host,
+ * and we initialize sockets for each namespace.
+ *
+ * @api public
+ */
+
+function lookup(uri, opts) {
+ if (typeof uri == 'object') {
+ opts = uri;
+ uri = undefined;
+ }
+
+ opts = opts || {};
+
+ var parsed = url(uri);
+ var source = parsed.source;
+ var id = parsed.id;
+ var io;
+
+ if (opts.forceNew || opts['force new connection'] || false === opts.multiplex) {
+ debug('ignoring socket cache for %s', source);
+ io = Manager(source, opts);
+ } else {
+ if (!cache[id]) {
+ debug('new io instance for %s', source);
+ cache[id] = Manager(source, opts);
+ }
+ io = cache[id];
+ }
+
+ return io.socket(parsed.path);
+}
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+exports.protocol = parser.protocol;
+
+/**
+ * `connect`.
+ *
+ * @param {String} uri
+ * @api public
+ */
+
+exports.connect = lookup;
+
+/**
+ * Expose constructors for standalone build.
+ *
+ * @api public
+ */
+
+exports.Manager = require('./manager');
+exports.Socket = require('./socket');
diff --git a/lib/manager.js b/lib/manager.js
new file mode 100644
index 0000000..87b9ed7
--- /dev/null
+++ b/lib/manager.js
@@ -0,0 +1,503 @@
+
+/**
+ * Module dependencies.
+ */
+
+var url = require('./url');
+var eio = require('engine.io-client');
+var Socket = require('./socket');
+var Emitter = require('component-emitter');
+var parser = require('socket.io-parser');
+var on = require('./on');
+var bind = require('component-bind');
+var object = require('object-component');
+var debug = require('debug')('socket.io-client:manager');
+var indexOf = require('indexof');
+var Backoff = require('backo2');
+
+/**
+ * Module exports
+ */
+
+module.exports = Manager;
+
+/**
+ * `Manager` constructor.
+ *
+ * @param {String} engine instance or engine uri/opts
+ * @param {Object} options
+ * @api public
+ */
+
+function Manager(uri, opts){
+ if (!(this instanceof Manager)) return new Manager(uri, opts);
+ if (uri && ('object' == typeof uri)) {
+ opts = uri;
+ uri = undefined;
+ }
+ opts = opts || {};
+
+ opts.path = opts.path || '/socket.io';
+ this.nsps = {};
+ this.subs = [];
+ this.opts = opts;
+ this.reconnection(opts.reconnection !== false);
+ this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
+ this.reconnectionDelay(opts.reconnectionDelay || 1000);
+ this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
+ this.randomizationFactor(opts.randomizationFactor || 0.5);
+ this.backoff = new Backoff({
+ min: this.reconnectionDelay(),
+ max: this.reconnectionDelayMax(),
+ jitter: this.randomizationFactor()
+ });
+ this.timeout(null == opts.timeout ? 20000 : opts.timeout);
+ this.readyState = 'closed';
+ this.uri = uri;
+ this.connected = [];
+ this.encoding = false;
+ this.packetBuffer = [];
+ this.encoder = new parser.Encoder();
+ this.decoder = new parser.Decoder();
+ this.autoConnect = opts.autoConnect !== false;
+ if (this.autoConnect) this.open();
+}
+
+/**
+ * Propagate given event to sockets and emit on `this`
+ *
+ * @api private
+ */
+
+Manager.prototype.emitAll = function() {
+ this.emit.apply(this, arguments);
+ for (var nsp in this.nsps) {
+ this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
+ }
+};
+
+/**
+ * Update `socket.id` of all sockets
+ *
+ * @api private
+ */
+
+Manager.prototype.updateSocketIds = function(){
+ for (var nsp in this.nsps) {
+ this.nsps[nsp].id = this.engine.id;
+ }
+};
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Manager.prototype);
+
+/**
+ * Sets the `reconnection` config.
+ *
+ * @param {Boolean} true/false if it should automatically reconnect
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnection = function(v){
+ if (!arguments.length) return this._reconnection;
+ this._reconnection = !!v;
+ return this;
+};
+
+/**
+ * Sets the reconnection attempts config.
+ *
+ * @param {Number} max reconnection attempts before giving up
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionAttempts = function(v){
+ if (!arguments.length) return this._reconnectionAttempts;
+ this._reconnectionAttempts = v;
+ return this;
+};
+
+/**
+ * Sets the delay between reconnections.
+ *
+ * @param {Number} delay
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionDelay = function(v){
+ if (!arguments.length) return this._reconnectionDelay;
+ this._reconnectionDelay = v;
+ this.backoff && this.backoff.setMin(v);
+ return this;
+};
+
+Manager.prototype.randomizationFactor = function(v){
+ if (!arguments.length) return this._randomizationFactor;
+ this._randomizationFactor = v;
+ this.backoff && this.backoff.setJitter(v);
+ return this;
+};
+
+/**
+ * Sets the maximum delay between reconnections.
+ *
+ * @param {Number} delay
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionDelayMax = function(v){
+ if (!arguments.length) return this._reconnectionDelayMax;
+ this._reconnectionDelayMax = v;
+ this.backoff && this.backoff.setMax(v);
+ return this;
+};
+
+/**
+ * Sets the connection timeout. `false` to disable
+ *
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.timeout = function(v){
+ if (!arguments.length) return this._timeout;
+ this._timeout = v;
+ return this;
+};
+
+/**
+ * Starts trying to reconnect if reconnection is enabled and we have not
+ * started reconnecting yet
+ *
+ * @api private
+ */
+
+Manager.prototype.maybeReconnectOnOpen = function() {
+ // Only try to reconnect if it's the first time we're connecting
+ if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
+ // keeps reconnection from firing twice for the same reconnection loop
+ this.reconnect();
+ }
+};
+
+
+/**
+ * Sets the current transport `socket`.
+ *
+ * @param {Function} optional, callback
+ * @return {Manager} self
+ * @api public
+ */
+
+Manager.prototype.open =
+Manager.prototype.connect = function(fn){
+ debug('readyState %s', this.readyState);
+ if (~this.readyState.indexOf('open')) return this;
+
+ debug('opening %s', this.uri);
+ this.engine = eio(this.uri, this.opts);
+ var socket = this.engine;
+ var self = this;
+ this.readyState = 'opening';
+ this.skipReconnect = false;
+
+ // emit `open`
+ var openSub = on(socket, 'open', function() {
+ self.onopen();
+ fn && fn();
+ });
+
+ // emit `connect_error`
+ var errorSub = on(socket, 'error', function(data){
+ debug('connect_error');
+ self.cleanup();
+ self.readyState = 'closed';
+ self.emitAll('connect_error', data);
+ if (fn) {
+ var err = new Error('Connection error');
+ err.data = data;
+ fn(err);
+ } else {
+ // Only do this if there is no fn to handle the error
+ self.maybeReconnectOnOpen();
+ }
+ });
+
+ // emit `connect_timeout`
+ if (false !== this._timeout) {
+ var timeout = this._timeout;
+ debug('connect attempt will timeout after %d', timeout);
+
+ // set timer
+ var timer = setTimeout(function(){
+ debug('connect attempt timed out after %d', timeout);
+ openSub.destroy();
+ socket.close();
+ socket.emit('error', 'timeout');
+ self.emitAll('connect_timeout', timeout);
+ }, timeout);
+
+ this.subs.push({
+ destroy: function(){
+ clearTimeout(timer);
+ }
+ });
+ }
+
+ this.subs.push(openSub);
+ this.subs.push(errorSub);
+
+ return this;
+};
+
+/**
+ * Called upon transport open.
+ *
+ * @api private
+ */
+
+Manager.prototype.onopen = function(){
+ debug('open');
+
+ // clear old subs
+ this.cleanup();
+
+ // mark as open
+ this.readyState = 'open';
+ this.emit('open');
+
+ // add new subs
+ var socket = this.engine;
+ this.subs.push(on(socket, 'data', bind(this, 'ondata')));
+ this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
+ this.subs.push(on(socket, 'error', bind(this, 'onerror')));
+ this.subs.push(on(socket, 'close', bind(this, 'onclose')));
+};
+
+/**
+ * Called with data.
+ *
+ * @api private
+ */
+
+Manager.prototype.ondata = function(data){
+ this.decoder.add(data);
+};
+
+/**
+ * Called when parser fully decodes a packet.
+ *
+ * @api private
+ */
+
+Manager.prototype.ondecoded = function(packet) {
+ this.emit('packet', packet);
+};
+
+/**
+ * Called upon socket error.
+ *
+ * @api private
+ */
+
+Manager.prototype.onerror = function(err){
+ debug('error', err);
+ this.emitAll('error', err);
+};
+
+/**
+ * Creates a new socket for the given `nsp`.
+ *
+ * @return {Socket}
+ * @api public
+ */
+
+Manager.prototype.socket = function(nsp){
+ var socket = this.nsps[nsp];
+ if (!socket) {
+ socket = new Socket(this, nsp);
+ this.nsps[nsp] = socket;
+ var self = this;
+ socket.on('connect', function(){
+ socket.id = self.engine.id;
+ if (!~indexOf(self.connected, socket)) {
+ self.connected.push(socket);
+ }
+ });
+ }
+ return socket;
+};
+
+/**
+ * Called upon a socket close.
+ *
+ * @param {Socket} socket
+ */
+
+Manager.prototype.destroy = function(socket){
+ var index = indexOf(this.connected, socket);
+ if (~index) this.connected.splice(index, 1);
+ if (this.connected.length) return;
+
+ this.close();
+};
+
+/**
+ * Writes a packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Manager.prototype.packet = function(packet){
+ debug('writing packet %j', packet);
+ var self = this;
+
+ if (!self.encoding) {
+ // encode, then write to engine with result
+ self.encoding = true;
+ this.encoder.encode(packet, function(encodedPackets) {
+ for (var i = 0; i < encodedPackets.length; i++) {
+ self.engine.write(encodedPackets[i]);
+ }
+ self.encoding = false;
+ self.processPacketQueue();
+ });
+ } else { // add packet to the queue
+ self.packetBuffer.push(packet);
+ }
+};
+
+/**
+ * If packet buffer is non-empty, begins encoding the
+ * next packet in line.
+ *
+ * @api private
+ */
+
+Manager.prototype.processPacketQueue = function() {
+ if (this.packetBuffer.length > 0 && !this.encoding) {
+ var pack = this.packetBuffer.shift();
+ this.packet(pack);
+ }
+};
+
+/**
+ * Clean up transport subscriptions and packet buffer.
+ *
+ * @api private
+ */
+
+Manager.prototype.cleanup = function(){
+ var sub;
+ while (sub = this.subs.shift()) sub.destroy();
+
+ this.packetBuffer = [];
+ this.encoding = false;
+
+ this.decoder.destroy();
+};
+
+/**
+ * Close the current socket.
+ *
+ * @api private
+ */
+
+Manager.prototype.close =
+Manager.prototype.disconnect = function(){
+ this.skipReconnect = true;
+ this.backoff.reset();
+ this.readyState = 'closed';
+ this.engine && this.engine.close();
+};
+
+/**
+ * Called upon engine close.
+ *
+ * @api private
+ */
+
+Manager.prototype.onclose = function(reason){
+ debug('close');
+ this.cleanup();
+ this.backoff.reset();
+ this.readyState = 'closed';
+ this.emit('close', reason);
+ if (this._reconnection && !this.skipReconnect) {
+ this.reconnect();
+ }
+};
+
+/**
+ * Attempt a reconnection.
+ *
+ * @api private
+ */
+
+Manager.prototype.reconnect = function(){
+ if (this.reconnecting || this.skipReconnect) return this;
+
+ var self = this;
+
+ if (this.backoff.attempts >= this._reconnectionAttempts) {
+ debug('reconnect failed');
+ this.backoff.reset();
+ this.emitAll('reconnect_failed');
+ this.reconnecting = false;
+ } else {
+ var delay = this.backoff.duration();
+ debug('will wait %dms before reconnect attempt', delay);
+
+ this.reconnecting = true;
+ var timer = setTimeout(function(){
+ if (self.skipReconnect) return;
+
+ debug('attempting reconnect');
+ self.emitAll('reconnect_attempt', self.backoff.attempts);
+ self.emitAll('reconnecting', self.backoff.attempts);
+
+ // check again for the case socket closed in above events
+ if (self.skipReconnect) return;
+
+ self.open(function(err){
+ if (err) {
+ debug('reconnect attempt error');
+ self.reconnecting = false;
+ self.reconnect();
+ self.emitAll('reconnect_error', err.data);
+ } else {
+ debug('reconnect success');
+ self.onreconnect();
+ }
+ });
+ }, delay);
+
+ this.subs.push({
+ destroy: function(){
+ clearTimeout(timer);
+ }
+ });
+ }
+};
+
+/**
+ * Called upon successful reconnect.
+ *
+ * @api private
+ */
+
+Manager.prototype.onreconnect = function(){
+ var attempt = this.backoff.attempts;
+ this.reconnecting = false;
+ this.backoff.reset();
+ this.updateSocketIds();
+ this.emitAll('reconnect', attempt);
+};
diff --git a/lib/on.js b/lib/on.js
new file mode 100644
index 0000000..6be286d
--- /dev/null
+++ b/lib/on.js
@@ -0,0 +1,24 @@
+
+/**
+ * Module exports.
+ */
+
+module.exports = on;
+
+/**
+ * Helper for subscriptions.
+ *
+ * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
+ * @param {String} event name
+ * @param {Function} callback
+ * @api public
+ */
+
+function on(obj, ev, fn) {
+ obj.on(ev, fn);
+ return {
+ destroy: function(){
+ obj.removeListener(ev, fn);
+ }
+ };
+}
diff --git a/lib/socket.js b/lib/socket.js
new file mode 100644
index 0000000..661e57f
--- /dev/null
+++ b/lib/socket.js
@@ -0,0 +1,385 @@
+
+/**
+ * Module dependencies.
+ */
+
+var parser = require('socket.io-parser');
+var Emitter = require('component-emitter');
+var toArray = require('to-array');
+var on = require('./on');
+var bind = require('component-bind');
+var debug = require('debug')('socket.io-client:socket');
+var hasBin = require('has-binary');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = Socket;
+
+/**
+ * Internal events (blacklisted).
+ * These events can't be emitted by the user.
+ *
+ * @api private
+ */
+
+var events = {
+ connect: 1,
+ connect_error: 1,
+ connect_timeout: 1,
+ disconnect: 1,
+ error: 1,
+ reconnect: 1,
+ reconnect_attempt: 1,
+ reconnect_failed: 1,
+ reconnect_error: 1,
+ reconnecting: 1
+};
+
+/**
+ * Shortcut to `Emitter#emit`.
+ */
+
+var emit = Emitter.prototype.emit;
+
+/**
+ * `Socket` constructor.
+ *
+ * @api public
+ */
+
+function Socket(io, nsp){
+ this.io = io;
+ this.nsp = nsp;
+ this.json = this; // compat
+ this.ids = 0;
+ this.acks = {};
+ if (this.io.autoConnect) this.open();
+ this.receiveBuffer = [];
+ this.sendBuffer = [];
+ this.connected = false;
+ this.disconnected = true;
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Socket.prototype);
+
+/**
+ * Subscribe to open, close and packet events
+ *
+ * @api private
+ */
+
+Socket.prototype.subEvents = function() {
+ if (this.subs) return;
+
+ var io = this.io;
+ this.subs = [
+ on(io, 'open', bind(this, 'onopen')),
+ on(io, 'packet', bind(this, 'onpacket')),
+ on(io, 'close', bind(this, 'onclose'))
+ ];
+};
+
+/**
+ * "Opens" the socket.
+ *
+ * @api public
+ */
+
+Socket.prototype.open =
+Socket.prototype.connect = function(){
+ if (this.connected) return this;
+
+ this.subEvents();
+ this.io.open(); // ensure open
+ if ('open' == this.io.readyState) this.onopen();
+ return this;
+};
+
+/**
+ * Sends a `message` event.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.send = function(){
+ var args = toArray(arguments);
+ args.unshift('message');
+ this.emit.apply(this, args);
+ return this;
+};
+
+/**
+ * Override `emit`.
+ * If the event is in `events`, it's emitted normally.
+ *
+ * @param {String} event name
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.emit = function(ev){
+ if (events.hasOwnProperty(ev)) {
+ emit.apply(this, arguments);
+ return this;
+ }
+
+ var args = toArray(arguments);
+ var parserType = parser.EVENT; // default
+ if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary
+ var packet = { type: parserType, data: args };
+
+ // event ack callback
+ if ('function' == typeof args[args.length - 1]) {
+ debug('emitting packet with ack id %d', this.ids);
+ this.acks[this.ids] = args.pop();
+ packet.id = this.ids++;
+ }
+
+ if (this.connected) {
+ this.packet(packet);
+ } else {
+ this.sendBuffer.push(packet);
+ }
+
+ return this;
+};
+
+/**
+ * Sends a packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.packet = function(packet){
+ packet.nsp = this.nsp;
+ this.io.packet(packet);
+};
+
+/**
+ * Called upon engine `open`.
+ *
+ * @api private
+ */
+
+Socket.prototype.onopen = function(){
+ debug('transport is open - connecting');
+
+ // write connect packet if necessary
+ if ('/' != this.nsp) {
+ this.packet({ type: parser.CONNECT });
+ }
+};
+
+/**
+ * Called upon engine `close`.
+ *
+ * @param {String} reason
+ * @api private
+ */
+
+Socket.prototype.onclose = function(reason){
+ debug('close (%s)', reason);
+ this.connected = false;
+ this.disconnected = true;
+ delete this.id;
+ this.emit('disconnect', reason);
+};
+
+/**
+ * Called with socket packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onpacket = function(packet){
+ if (packet.nsp != this.nsp) return;
+
+ switch (packet.type) {
+ case parser.CONNECT:
+ this.onconnect();
+ break;
+
+ case parser.EVENT:
+ this.onevent(packet);
+ break;
+
+ case parser.BINARY_EVENT:
+ this.onevent(packet);
+ break;
+
+ case parser.ACK:
+ this.onack(packet);
+ break;
+
+ case parser.BINARY_ACK:
+ this.onack(packet);
+ break;
+
+ case parser.DISCONNECT:
+ this.ondisconnect();
+ break;
+
+ case parser.ERROR:
+ this.emit('error', packet.data);
+ break;
+ }
+};
+
+/**
+ * Called upon a server event.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onevent = function(packet){
+ var args = packet.data || [];
+ debug('emitting event %j', args);
+
+ if (null != packet.id) {
+ debug('attaching ack callback to event');
+ args.push(this.ack(packet.id));
+ }
+
+ if (this.connected) {
+ emit.apply(this, args);
+ } else {
+ this.receiveBuffer.push(args);
+ }
+};
+
+/**
+ * Produces an ack callback to emit with an event.
+ *
+ * @api private
+ */
+
+Socket.prototype.ack = function(id){
+ var self = this;
+ var sent = false;
+ return function(){
+ // prevent double callbacks
+ if (sent) return;
+ sent = true;
+ var args = toArray(arguments);
+ debug('sending ack %j', args);
+
+ var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK;
+ self.packet({
+ type: type,
+ id: id,
+ data: args
+ });
+ };
+};
+
+/**
+ * Called upon a server acknowlegement.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onack = function(packet){
+ debug('calling ack %s with %j', packet.id, packet.data);
+ var fn = this.acks[packet.id];
+ fn.apply(this, packet.data);
+ delete this.acks[packet.id];
+};
+
+/**
+ * Called upon server connect.
+ *
+ * @api private
+ */
+
+Socket.prototype.onconnect = function(){
+ this.connected = true;
+ this.disconnected = false;
+ this.emit('connect');
+ this.emitBuffered();
+};
+
+/**
+ * Emit buffered events (received and emitted).
+ *
+ * @api private
+ */
+
+Socket.prototype.emitBuffered = function(){
+ var i;
+ for (i = 0; i < this.receiveBuffer.length; i++) {
+ emit.apply(this, this.receiveBuffer[i]);
+ }
+ this.receiveBuffer = [];
+
+ for (i = 0; i < this.sendBuffer.length; i++) {
+ this.packet(this.sendBuffer[i]);
+ }
+ this.sendBuffer = [];
+};
+
+/**
+ * Called upon server disconnect.
+ *
+ * @api private
+ */
+
+Socket.prototype.ondisconnect = function(){
+ debug('server disconnect (%s)', this.nsp);
+ this.destroy();
+ this.onclose('io server disconnect');
+};
+
+/**
+ * Called upon forced client/server side disconnections,
+ * this method ensures the manager stops tracking us and
+ * that reconnections don't get triggered for this.
+ *
+ * @api private.
+ */
+
+Socket.prototype.destroy = function(){
+ if (this.subs) {
+ // clean subscriptions to avoid reconnections
+ for (var i = 0; i < this.subs.length; i++) {
+ this.subs[i].destroy();
+ }
+ this.subs = null;
+ }
+
+ this.io.destroy(this);
+};
+
+/**
+ * Disconnects the socket manually.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.close =
+Socket.prototype.disconnect = function(){
+ if (this.connected) {
+ debug('performing disconnect (%s)', this.nsp);
+ this.packet({ type: parser.DISCONNECT });
+ }
+
+ // remove socket from pool
+ this.destroy();
+
+ if (this.connected) {
+ // fire events
+ this.onclose('io client disconnect');
+ }
+ return this;
+};
diff --git a/lib/url.js b/lib/url.js
new file mode 100644
index 0000000..d8e68d9
--- /dev/null
+++ b/lib/url.js
@@ -0,0 +1,73 @@
+
+/**
+ * Module dependencies.
+ */
+
+var parseuri = require('parseuri');
+var debug = require('debug')('socket.io-client:url');
+
+/**
+ * Module exports.
+ */
+
+module.exports = url;
+
+/**
+ * URL parser.
+ *
+ * @param {String} url
+ * @param {Object} An object meant to mimic window.location.
+ * Defaults to window.location.
+ * @api public
+ */
+
+function url(uri, loc){
+ var obj = uri;
+
+ // default to window.location
+ var loc = loc || global.location;
+ if (null == uri) uri = loc.protocol + '//' + loc.host;
+
+ // relative path support
+ if ('string' == typeof uri) {
+ if ('/' == uri.charAt(0)) {
+ if ('/' == uri.charAt(1)) {
+ uri = loc.protocol + uri;
+ } else {
+ uri = loc.hostname + uri;
+ }
+ }
+
+ if (!/^(https?|wss?):\/\//.test(uri)) {
+ debug('protocol-less url %s', uri);
+ if ('undefined' != typeof loc) {
+ uri = loc.protocol + '//' + uri;
+ } else {
+ uri = 'https://' + uri;
+ }
+ }
+
+ // parse
+ debug('parse %s', uri);
+ obj = parseuri(uri);
+ }
+
+ // make sure we treat `localhost:80` and `localhost` equally
+ if (!obj.port) {
+ if (/^(http|ws)$/.test(obj.protocol)) {
+ obj.port = '80';
+ }
+ else if (/^(http|ws)s$/.test(obj.protocol)) {
+ obj.port = '443';
+ }
+ }
+
+ obj.path = obj.path || '/';
+
+ // define unique id
+ obj.id = obj.protocol + '://' + obj.host + ':' + obj.port;
+ // define href
+ obj.href = obj.protocol + '://' + obj.host + (loc && loc.port == obj.port ? '' : (':' + obj.port));
+
+ return obj;
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..ce167c2
--- /dev/null
+++ b/package.json
@@ -0,0 +1,63 @@
+{
+ "name": "socket.io-client",
+ "version": "1.3.5",
+ "keywords": [
+ "realtime",
+ "framework",
+ "websocket",
+ "tcp",
+ "events",
+ "client"
+ ],
+ "dependencies": {
+ "debug": "0.7.4",
+ "engine.io-client": "1.5.1",
+ "component-bind": "1.0.0",
+ "component-emitter": "1.1.2",
+ "object-component": "0.0.3",
+ "socket.io-parser": "2.2.4",
+ "has-binary": "0.1.6",
+ "indexof": "0.0.1",
+ "parseuri": "0.0.2",
+ "to-array": "0.1.3",
+ "backo2": "1.0.2"
+ },
+ "devDependencies": {
+ "socket.io": "1.3.4",
+ "mocha": "1.16.2",
+ "zuul": "rase-/zuul#9d3a02",
+ "istanbul": "0.2.1",
+ "expect.js": "0.2.0",
+ "uglify-js": "2.4.15",
+ "browserify": "4.2.1",
+ "base64-arraybuffer": "0.1.0",
+ "text-blob-builder": "0.0.1",
+ "has-cors": "1.0.3"
+ },
+ "scripts": {
+ "test": "make test"
+ },
+ "contributors": [
+ {
+ "name": "Guillermo Rauch",
+ "email": "rauchg at gmail.com"
+ },
+ {
+ "name": "Arnout Kazemier",
+ "email": "info at 3rd-eden.com"
+ },
+ {
+ "name": "Vladimir Dronnikov",
+ "email": "dronnikov at gmail.com"
+ },
+ {
+ "name": "Einar Otto Stangvik",
+ "email": "einaros at gmail.com"
+ }
+ ],
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/Automattic/socket.io-client.git"
+ },
+ "license": "MIT"
+}
diff --git a/socket.io.js b/socket.io.js
new file mode 100644
index 0000000..443b5d5
--- /dev/null
+++ b/socket.io.js
@@ -0,0 +1,7000 @@
+!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.io=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find mo [...]
+
+module.exports = _dereq_('./lib/');
+
+},{"./lib/":2}],2:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var url = _dereq_('./url');
+var parser = _dereq_('socket.io-parser');
+var Manager = _dereq_('./manager');
+var debug = _dereq_('debug')('socket.io-client');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = lookup;
+
+/**
+ * Managers cache.
+ */
+
+var cache = exports.managers = {};
+
+/**
+ * Looks up an existing `Manager` for multiplexing.
+ * If the user summons:
+ *
+ * `io('http://localhost/a');`
+ * `io('http://localhost/b');`
+ *
+ * We reuse the existing instance based on same scheme/port/host,
+ * and we initialize sockets for each namespace.
+ *
+ * @api public
+ */
+
+function lookup(uri, opts) {
+ if (typeof uri == 'object') {
+ opts = uri;
+ uri = undefined;
+ }
+
+ opts = opts || {};
+
+ var parsed = url(uri);
+ var source = parsed.source;
+ var id = parsed.id;
+ var io;
+
+ if (opts.forceNew || opts['force new connection'] || false === opts.multiplex) {
+ debug('ignoring socket cache for %s', source);
+ io = Manager(source, opts);
+ } else {
+ if (!cache[id]) {
+ debug('new io instance for %s', source);
+ cache[id] = Manager(source, opts);
+ }
+ io = cache[id];
+ }
+
+ return io.socket(parsed.path);
+}
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+exports.protocol = parser.protocol;
+
+/**
+ * `connect`.
+ *
+ * @param {String} uri
+ * @api public
+ */
+
+exports.connect = lookup;
+
+/**
+ * Expose constructors for standalone build.
+ *
+ * @api public
+ */
+
+exports.Manager = _dereq_('./manager');
+exports.Socket = _dereq_('./socket');
+
+},{"./manager":3,"./socket":5,"./url":6,"debug":10,"socket.io-parser":46}],3:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var url = _dereq_('./url');
+var eio = _dereq_('engine.io-client');
+var Socket = _dereq_('./socket');
+var Emitter = _dereq_('component-emitter');
+var parser = _dereq_('socket.io-parser');
+var on = _dereq_('./on');
+var bind = _dereq_('component-bind');
+var object = _dereq_('object-component');
+var debug = _dereq_('debug')('socket.io-client:manager');
+var indexOf = _dereq_('indexof');
+var Backoff = _dereq_('backo2');
+
+/**
+ * Module exports
+ */
+
+module.exports = Manager;
+
+/**
+ * `Manager` constructor.
+ *
+ * @param {String} engine instance or engine uri/opts
+ * @param {Object} options
+ * @api public
+ */
+
+function Manager(uri, opts){
+ if (!(this instanceof Manager)) return new Manager(uri, opts);
+ if (uri && ('object' == typeof uri)) {
+ opts = uri;
+ uri = undefined;
+ }
+ opts = opts || {};
+
+ opts.path = opts.path || '/socket.io';
+ this.nsps = {};
+ this.subs = [];
+ this.opts = opts;
+ this.reconnection(opts.reconnection !== false);
+ this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
+ this.reconnectionDelay(opts.reconnectionDelay || 1000);
+ this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
+ this.randomizationFactor(opts.randomizationFactor || 0.5);
+ this.backoff = new Backoff({
+ min: this.reconnectionDelay(),
+ max: this.reconnectionDelayMax(),
+ jitter: this.randomizationFactor()
+ });
+ this.timeout(null == opts.timeout ? 20000 : opts.timeout);
+ this.readyState = 'closed';
+ this.uri = uri;
+ this.connected = [];
+ this.encoding = false;
+ this.packetBuffer = [];
+ this.encoder = new parser.Encoder();
+ this.decoder = new parser.Decoder();
+ this.autoConnect = opts.autoConnect !== false;
+ if (this.autoConnect) this.open();
+}
+
+/**
+ * Propagate given event to sockets and emit on `this`
+ *
+ * @api private
+ */
+
+Manager.prototype.emitAll = function() {
+ this.emit.apply(this, arguments);
+ for (var nsp in this.nsps) {
+ this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
+ }
+};
+
+/**
+ * Update `socket.id` of all sockets
+ *
+ * @api private
+ */
+
+Manager.prototype.updateSocketIds = function(){
+ for (var nsp in this.nsps) {
+ this.nsps[nsp].id = this.engine.id;
+ }
+};
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Manager.prototype);
+
+/**
+ * Sets the `reconnection` config.
+ *
+ * @param {Boolean} true/false if it should automatically reconnect
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnection = function(v){
+ if (!arguments.length) return this._reconnection;
+ this._reconnection = !!v;
+ return this;
+};
+
+/**
+ * Sets the reconnection attempts config.
+ *
+ * @param {Number} max reconnection attempts before giving up
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionAttempts = function(v){
+ if (!arguments.length) return this._reconnectionAttempts;
+ this._reconnectionAttempts = v;
+ return this;
+};
+
+/**
+ * Sets the delay between reconnections.
+ *
+ * @param {Number} delay
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionDelay = function(v){
+ if (!arguments.length) return this._reconnectionDelay;
+ this._reconnectionDelay = v;
+ this.backoff && this.backoff.setMin(v);
+ return this;
+};
+
+Manager.prototype.randomizationFactor = function(v){
+ if (!arguments.length) return this._randomizationFactor;
+ this._randomizationFactor = v;
+ this.backoff && this.backoff.setJitter(v);
+ return this;
+};
+
+/**
+ * Sets the maximum delay between reconnections.
+ *
+ * @param {Number} delay
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionDelayMax = function(v){
+ if (!arguments.length) return this._reconnectionDelayMax;
+ this._reconnectionDelayMax = v;
+ this.backoff && this.backoff.setMax(v);
+ return this;
+};
+
+/**
+ * Sets the connection timeout. `false` to disable
+ *
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.timeout = function(v){
+ if (!arguments.length) return this._timeout;
+ this._timeout = v;
+ return this;
+};
+
+/**
+ * Starts trying to reconnect if reconnection is enabled and we have not
+ * started reconnecting yet
+ *
+ * @api private
+ */
+
+Manager.prototype.maybeReconnectOnOpen = function() {
+ // Only try to reconnect if it's the first time we're connecting
+ if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
+ // keeps reconnection from firing twice for the same reconnection loop
+ this.reconnect();
+ }
+};
+
+
+/**
+ * Sets the current transport `socket`.
+ *
+ * @param {Function} optional, callback
+ * @return {Manager} self
+ * @api public
+ */
+
+Manager.prototype.open =
+Manager.prototype.connect = function(fn){
+ debug('readyState %s', this.readyState);
+ if (~this.readyState.indexOf('open')) return this;
+
+ debug('opening %s', this.uri);
+ this.engine = eio(this.uri, this.opts);
+ var socket = this.engine;
+ var self = this;
+ this.readyState = 'opening';
+ this.skipReconnect = false;
+
+ // emit `open`
+ var openSub = on(socket, 'open', function() {
+ self.onopen();
+ fn && fn();
+ });
+
+ // emit `connect_error`
+ var errorSub = on(socket, 'error', function(data){
+ debug('connect_error');
+ self.cleanup();
+ self.readyState = 'closed';
+ self.emitAll('connect_error', data);
+ if (fn) {
+ var err = new Error('Connection error');
+ err.data = data;
+ fn(err);
+ } else {
+ // Only do this if there is no fn to handle the error
+ self.maybeReconnectOnOpen();
+ }
+ });
+
+ // emit `connect_timeout`
+ if (false !== this._timeout) {
+ var timeout = this._timeout;
+ debug('connect attempt will timeout after %d', timeout);
+
+ // set timer
+ var timer = setTimeout(function(){
+ debug('connect attempt timed out after %d', timeout);
+ openSub.destroy();
+ socket.close();
+ socket.emit('error', 'timeout');
+ self.emitAll('connect_timeout', timeout);
+ }, timeout);
+
+ this.subs.push({
+ destroy: function(){
+ clearTimeout(timer);
+ }
+ });
+ }
+
+ this.subs.push(openSub);
+ this.subs.push(errorSub);
+
+ return this;
+};
+
+/**
+ * Called upon transport open.
+ *
+ * @api private
+ */
+
+Manager.prototype.onopen = function(){
+ debug('open');
+
+ // clear old subs
+ this.cleanup();
+
+ // mark as open
+ this.readyState = 'open';
+ this.emit('open');
+
+ // add new subs
+ var socket = this.engine;
+ this.subs.push(on(socket, 'data', bind(this, 'ondata')));
+ this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
+ this.subs.push(on(socket, 'error', bind(this, 'onerror')));
+ this.subs.push(on(socket, 'close', bind(this, 'onclose')));
+};
+
+/**
+ * Called with data.
+ *
+ * @api private
+ */
+
+Manager.prototype.ondata = function(data){
+ this.decoder.add(data);
+};
+
+/**
+ * Called when parser fully decodes a packet.
+ *
+ * @api private
+ */
+
+Manager.prototype.ondecoded = function(packet) {
+ this.emit('packet', packet);
+};
+
+/**
+ * Called upon socket error.
+ *
+ * @api private
+ */
+
+Manager.prototype.onerror = function(err){
+ debug('error', err);
+ this.emitAll('error', err);
+};
+
+/**
+ * Creates a new socket for the given `nsp`.
+ *
+ * @return {Socket}
+ * @api public
+ */
+
+Manager.prototype.socket = function(nsp){
+ var socket = this.nsps[nsp];
+ if (!socket) {
+ socket = new Socket(this, nsp);
+ this.nsps[nsp] = socket;
+ var self = this;
+ socket.on('connect', function(){
+ socket.id = self.engine.id;
+ if (!~indexOf(self.connected, socket)) {
+ self.connected.push(socket);
+ }
+ });
+ }
+ return socket;
+};
+
+/**
+ * Called upon a socket close.
+ *
+ * @param {Socket} socket
+ */
+
+Manager.prototype.destroy = function(socket){
+ var index = indexOf(this.connected, socket);
+ if (~index) this.connected.splice(index, 1);
+ if (this.connected.length) return;
+
+ this.close();
+};
+
+/**
+ * Writes a packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Manager.prototype.packet = function(packet){
+ debug('writing packet %j', packet);
+ var self = this;
+
+ if (!self.encoding) {
+ // encode, then write to engine with result
+ self.encoding = true;
+ this.encoder.encode(packet, function(encodedPackets) {
+ for (var i = 0; i < encodedPackets.length; i++) {
+ self.engine.write(encodedPackets[i]);
+ }
+ self.encoding = false;
+ self.processPacketQueue();
+ });
+ } else { // add packet to the queue
+ self.packetBuffer.push(packet);
+ }
+};
+
+/**
+ * If packet buffer is non-empty, begins encoding the
+ * next packet in line.
+ *
+ * @api private
+ */
+
+Manager.prototype.processPacketQueue = function() {
+ if (this.packetBuffer.length > 0 && !this.encoding) {
+ var pack = this.packetBuffer.shift();
+ this.packet(pack);
+ }
+};
+
+/**
+ * Clean up transport subscriptions and packet buffer.
+ *
+ * @api private
+ */
+
+Manager.prototype.cleanup = function(){
+ var sub;
+ while (sub = this.subs.shift()) sub.destroy();
+
+ this.packetBuffer = [];
+ this.encoding = false;
+
+ this.decoder.destroy();
+};
+
+/**
+ * Close the current socket.
+ *
+ * @api private
+ */
+
+Manager.prototype.close =
+Manager.prototype.disconnect = function(){
+ this.skipReconnect = true;
+ this.backoff.reset();
+ this.readyState = 'closed';
+ this.engine && this.engine.close();
+};
+
+/**
+ * Called upon engine close.
+ *
+ * @api private
+ */
+
+Manager.prototype.onclose = function(reason){
+ debug('close');
+ this.cleanup();
+ this.backoff.reset();
+ this.readyState = 'closed';
+ this.emit('close', reason);
+ if (this._reconnection && !this.skipReconnect) {
+ this.reconnect();
+ }
+};
+
+/**
+ * Attempt a reconnection.
+ *
+ * @api private
+ */
+
+Manager.prototype.reconnect = function(){
+ if (this.reconnecting || this.skipReconnect) return this;
+
+ var self = this;
+
+ if (this.backoff.attempts >= this._reconnectionAttempts) {
+ debug('reconnect failed');
+ this.backoff.reset();
+ this.emitAll('reconnect_failed');
+ this.reconnecting = false;
+ } else {
+ var delay = this.backoff.duration();
+ debug('will wait %dms before reconnect attempt', delay);
+
+ this.reconnecting = true;
+ var timer = setTimeout(function(){
+ if (self.skipReconnect) return;
+
+ debug('attempting reconnect');
+ self.emitAll('reconnect_attempt', self.backoff.attempts);
+ self.emitAll('reconnecting', self.backoff.attempts);
+
+ // check again for the case socket closed in above events
+ if (self.skipReconnect) return;
+
+ self.open(function(err){
+ if (err) {
+ debug('reconnect attempt error');
+ self.reconnecting = false;
+ self.reconnect();
+ self.emitAll('reconnect_error', err.data);
+ } else {
+ debug('reconnect success');
+ self.onreconnect();
+ }
+ });
+ }, delay);
+
+ this.subs.push({
+ destroy: function(){
+ clearTimeout(timer);
+ }
+ });
+ }
+};
+
+/**
+ * Called upon successful reconnect.
+ *
+ * @api private
+ */
+
+Manager.prototype.onreconnect = function(){
+ var attempt = this.backoff.attempts;
+ this.reconnecting = false;
+ this.backoff.reset();
+ this.updateSocketIds();
+ this.emitAll('reconnect', attempt);
+};
+
+},{"./on":4,"./socket":5,"./url":6,"backo2":7,"component-bind":8,"component-emitter":9,"debug":10,"engine.io-client":11,"indexof":42,"object-component":43,"socket.io-parser":46}],4:[function(_dereq_,module,exports){
+
+/**
+ * Module exports.
+ */
+
+module.exports = on;
+
+/**
+ * Helper for subscriptions.
+ *
+ * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
+ * @param {String} event name
+ * @param {Function} callback
+ * @api public
+ */
+
+function on(obj, ev, fn) {
+ obj.on(ev, fn);
+ return {
+ destroy: function(){
+ obj.removeListener(ev, fn);
+ }
+ };
+}
+
+},{}],5:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var parser = _dereq_('socket.io-parser');
+var Emitter = _dereq_('component-emitter');
+var toArray = _dereq_('to-array');
+var on = _dereq_('./on');
+var bind = _dereq_('component-bind');
+var debug = _dereq_('debug')('socket.io-client:socket');
+var hasBin = _dereq_('has-binary');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = Socket;
+
+/**
+ * Internal events (blacklisted).
+ * These events can't be emitted by the user.
+ *
+ * @api private
+ */
+
+var events = {
+ connect: 1,
+ connect_error: 1,
+ connect_timeout: 1,
+ disconnect: 1,
+ error: 1,
+ reconnect: 1,
+ reconnect_attempt: 1,
+ reconnect_failed: 1,
+ reconnect_error: 1,
+ reconnecting: 1
+};
+
+/**
+ * Shortcut to `Emitter#emit`.
+ */
+
+var emit = Emitter.prototype.emit;
+
+/**
+ * `Socket` constructor.
+ *
+ * @api public
+ */
+
+function Socket(io, nsp){
+ this.io = io;
+ this.nsp = nsp;
+ this.json = this; // compat
+ this.ids = 0;
+ this.acks = {};
+ if (this.io.autoConnect) this.open();
+ this.receiveBuffer = [];
+ this.sendBuffer = [];
+ this.connected = false;
+ this.disconnected = true;
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Socket.prototype);
+
+/**
+ * Subscribe to open, close and packet events
+ *
+ * @api private
+ */
+
+Socket.prototype.subEvents = function() {
+ if (this.subs) return;
+
+ var io = this.io;
+ this.subs = [
+ on(io, 'open', bind(this, 'onopen')),
+ on(io, 'packet', bind(this, 'onpacket')),
+ on(io, 'close', bind(this, 'onclose'))
+ ];
+};
+
+/**
+ * "Opens" the socket.
+ *
+ * @api public
+ */
+
+Socket.prototype.open =
+Socket.prototype.connect = function(){
+ if (this.connected) return this;
+
+ this.subEvents();
+ this.io.open(); // ensure open
+ if ('open' == this.io.readyState) this.onopen();
+ return this;
+};
+
+/**
+ * Sends a `message` event.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.send = function(){
+ var args = toArray(arguments);
+ args.unshift('message');
+ this.emit.apply(this, args);
+ return this;
+};
+
+/**
+ * Override `emit`.
+ * If the event is in `events`, it's emitted normally.
+ *
+ * @param {String} event name
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.emit = function(ev){
+ if (events.hasOwnProperty(ev)) {
+ emit.apply(this, arguments);
+ return this;
+ }
+
+ var args = toArray(arguments);
+ var parserType = parser.EVENT; // default
+ if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary
+ var packet = { type: parserType, data: args };
+
+ // event ack callback
+ if ('function' == typeof args[args.length - 1]) {
+ debug('emitting packet with ack id %d', this.ids);
+ this.acks[this.ids] = args.pop();
+ packet.id = this.ids++;
+ }
+
+ if (this.connected) {
+ this.packet(packet);
+ } else {
+ this.sendBuffer.push(packet);
+ }
+
+ return this;
+};
+
+/**
+ * Sends a packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.packet = function(packet){
+ packet.nsp = this.nsp;
+ this.io.packet(packet);
+};
+
+/**
+ * Called upon engine `open`.
+ *
+ * @api private
+ */
+
+Socket.prototype.onopen = function(){
+ debug('transport is open - connecting');
+
+ // write connect packet if necessary
+ if ('/' != this.nsp) {
+ this.packet({ type: parser.CONNECT });
+ }
+};
+
+/**
+ * Called upon engine `close`.
+ *
+ * @param {String} reason
+ * @api private
+ */
+
+Socket.prototype.onclose = function(reason){
+ debug('close (%s)', reason);
+ this.connected = false;
+ this.disconnected = true;
+ delete this.id;
+ this.emit('disconnect', reason);
+};
+
+/**
+ * Called with socket packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onpacket = function(packet){
+ if (packet.nsp != this.nsp) return;
+
+ switch (packet.type) {
+ case parser.CONNECT:
+ this.onconnect();
+ break;
+
+ case parser.EVENT:
+ this.onevent(packet);
+ break;
+
+ case parser.BINARY_EVENT:
+ this.onevent(packet);
+ break;
+
+ case parser.ACK:
+ this.onack(packet);
+ break;
+
+ case parser.BINARY_ACK:
+ this.onack(packet);
+ break;
+
+ case parser.DISCONNECT:
+ this.ondisconnect();
+ break;
+
+ case parser.ERROR:
+ this.emit('error', packet.data);
+ break;
+ }
+};
+
+/**
+ * Called upon a server event.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onevent = function(packet){
+ var args = packet.data || [];
+ debug('emitting event %j', args);
+
+ if (null != packet.id) {
+ debug('attaching ack callback to event');
+ args.push(this.ack(packet.id));
+ }
+
+ if (this.connected) {
+ emit.apply(this, args);
+ } else {
+ this.receiveBuffer.push(args);
+ }
+};
+
+/**
+ * Produces an ack callback to emit with an event.
+ *
+ * @api private
+ */
+
+Socket.prototype.ack = function(id){
+ var self = this;
+ var sent = false;
+ return function(){
+ // prevent double callbacks
+ if (sent) return;
+ sent = true;
+ var args = toArray(arguments);
+ debug('sending ack %j', args);
+
+ var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK;
+ self.packet({
+ type: type,
+ id: id,
+ data: args
+ });
+ };
+};
+
+/**
+ * Called upon a server acknowlegement.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onack = function(packet){
+ debug('calling ack %s with %j', packet.id, packet.data);
+ var fn = this.acks[packet.id];
+ fn.apply(this, packet.data);
+ delete this.acks[packet.id];
+};
+
+/**
+ * Called upon server connect.
+ *
+ * @api private
+ */
+
+Socket.prototype.onconnect = function(){
+ this.connected = true;
+ this.disconnected = false;
+ this.emit('connect');
+ this.emitBuffered();
+};
+
+/**
+ * Emit buffered events (received and emitted).
+ *
+ * @api private
+ */
+
+Socket.prototype.emitBuffered = function(){
+ var i;
+ for (i = 0; i < this.receiveBuffer.length; i++) {
+ emit.apply(this, this.receiveBuffer[i]);
+ }
+ this.receiveBuffer = [];
+
+ for (i = 0; i < this.sendBuffer.length; i++) {
+ this.packet(this.sendBuffer[i]);
+ }
+ this.sendBuffer = [];
+};
+
+/**
+ * Called upon server disconnect.
+ *
+ * @api private
+ */
+
+Socket.prototype.ondisconnect = function(){
+ debug('server disconnect (%s)', this.nsp);
+ this.destroy();
+ this.onclose('io server disconnect');
+};
+
+/**
+ * Called upon forced client/server side disconnections,
+ * this method ensures the manager stops tracking us and
+ * that reconnections don't get triggered for this.
+ *
+ * @api private.
+ */
+
+Socket.prototype.destroy = function(){
+ if (this.subs) {
+ // clean subscriptions to avoid reconnections
+ for (var i = 0; i < this.subs.length; i++) {
+ this.subs[i].destroy();
+ }
+ this.subs = null;
+ }
+
+ this.io.destroy(this);
+};
+
+/**
+ * Disconnects the socket manually.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.close =
+Socket.prototype.disconnect = function(){
+ if (this.connected) {
+ debug('performing disconnect (%s)', this.nsp);
+ this.packet({ type: parser.DISCONNECT });
+ }
+
+ // remove socket from pool
+ this.destroy();
+
+ if (this.connected) {
+ // fire events
+ this.onclose('io client disconnect');
+ }
+ return this;
+};
+
+},{"./on":4,"component-bind":8,"component-emitter":9,"debug":10,"has-binary":38,"socket.io-parser":46,"to-array":50}],6:[function(_dereq_,module,exports){
+(function (global){
+
+/**
+ * Module dependencies.
+ */
+
+var parseuri = _dereq_('parseuri');
+var debug = _dereq_('debug')('socket.io-client:url');
+
+/**
+ * Module exports.
+ */
+
+module.exports = url;
+
+/**
+ * URL parser.
+ *
+ * @param {String} url
+ * @param {Object} An object meant to mimic window.location.
+ * Defaults to window.location.
+ * @api public
+ */
+
+function url(uri, loc){
+ var obj = uri;
+
+ // default to window.location
+ var loc = loc || global.location;
+ if (null == uri) uri = loc.protocol + '//' + loc.host;
+
+ // relative path support
+ if ('string' == typeof uri) {
+ if ('/' == uri.charAt(0)) {
+ if ('/' == uri.charAt(1)) {
+ uri = loc.protocol + uri;
+ } else {
+ uri = loc.hostname + uri;
+ }
+ }
+
+ if (!/^(https?|wss?):\/\//.test(uri)) {
+ debug('protocol-less url %s', uri);
+ if ('undefined' != typeof loc) {
+ uri = loc.protocol + '//' + uri;
+ } else {
+ uri = 'https://' + uri;
+ }
+ }
+
+ // parse
+ debug('parse %s', uri);
+ obj = parseuri(uri);
+ }
+
+ // make sure we treat `localhost:80` and `localhost` equally
+ if (!obj.port) {
+ if (/^(http|ws)$/.test(obj.protocol)) {
+ obj.port = '80';
+ }
+ else if (/^(http|ws)s$/.test(obj.protocol)) {
+ obj.port = '443';
+ }
+ }
+
+ obj.path = obj.path || '/';
+
+ // define unique id
+ obj.id = obj.protocol + '://' + obj.host + ':' + obj.port;
+ // define href
+ obj.href = obj.protocol + '://' + obj.host + (loc && loc.port == obj.port ? '' : (':' + obj.port));
+
+ return obj;
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"debug":10,"parseuri":44}],7:[function(_dereq_,module,exports){
+
+/**
+ * Expose `Backoff`.
+ */
+
+module.exports = Backoff;
+
+/**
+ * Initialize backoff timer with `opts`.
+ *
+ * - `min` initial timeout in milliseconds [100]
+ * - `max` max timeout [10000]
+ * - `jitter` [0]
+ * - `factor` [2]
+ *
+ * @param {Object} opts
+ * @api public
+ */
+
+function Backoff(opts) {
+ opts = opts || {};
+ this.ms = opts.min || 100;
+ this.max = opts.max || 10000;
+ this.factor = opts.factor || 2;
+ this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
+ this.attempts = 0;
+}
+
+/**
+ * Return the backoff duration.
+ *
+ * @return {Number}
+ * @api public
+ */
+
+Backoff.prototype.duration = function(){
+ var ms = this.ms * Math.pow(this.factor, this.attempts++);
+ if (this.jitter) {
+ var rand = Math.random();
+ var deviation = Math.floor(rand * this.jitter * ms);
+ ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;
+ }
+ return Math.min(ms, this.max) | 0;
+};
+
+/**
+ * Reset the number of attempts.
+ *
+ * @api public
+ */
+
+Backoff.prototype.reset = function(){
+ this.attempts = 0;
+};
+
+/**
+ * Set the minimum duration
+ *
+ * @api public
+ */
+
+Backoff.prototype.setMin = function(min){
+ this.ms = min;
+};
+
+/**
+ * Set the maximum duration
+ *
+ * @api public
+ */
+
+Backoff.prototype.setMax = function(max){
+ this.max = max;
+};
+
+/**
+ * Set the jitter
+ *
+ * @api public
+ */
+
+Backoff.prototype.setJitter = function(jitter){
+ this.jitter = jitter;
+};
+
+
+},{}],8:[function(_dereq_,module,exports){
+/**
+ * Slice reference.
+ */
+
+var slice = [].slice;
+
+/**
+ * Bind `obj` to `fn`.
+ *
+ * @param {Object} obj
+ * @param {Function|String} fn or string
+ * @return {Function}
+ * @api public
+ */
+
+module.exports = function(obj, fn){
+ if ('string' == typeof fn) fn = obj[fn];
+ if ('function' != typeof fn) throw new Error('bind() requires a function');
+ var args = slice.call(arguments, 2);
+ return function(){
+ return fn.apply(obj, args.concat(slice.call(arguments)));
+ }
+};
+
+},{}],9:[function(_dereq_,module,exports){
+
+/**
+ * Expose `Emitter`.
+ */
+
+module.exports = Emitter;
+
+/**
+ * Initialize a new `Emitter`.
+ *
+ * @api public
+ */
+
+function Emitter(obj) {
+ if (obj) return mixin(obj);
+};
+
+/**
+ * Mixin the emitter properties.
+ *
+ * @param {Object} obj
+ * @return {Object}
+ * @api private
+ */
+
+function mixin(obj) {
+ for (var key in Emitter.prototype) {
+ obj[key] = Emitter.prototype[key];
+ }
+ return obj;
+}
+
+/**
+ * Listen on the given `event` with `fn`.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.on =
+Emitter.prototype.addEventListener = function(event, fn){
+ this._callbacks = this._callbacks || {};
+ (this._callbacks[event] = this._callbacks[event] || [])
+ .push(fn);
+ return this;
+};
+
+/**
+ * Adds an `event` listener that will be invoked a single
+ * time then automatically removed.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.once = function(event, fn){
+ var self = this;
+ this._callbacks = this._callbacks || {};
+
+ function on() {
+ self.off(event, on);
+ fn.apply(this, arguments);
+ }
+
+ on.fn = fn;
+ this.on(event, on);
+ return this;
+};
+
+/**
+ * Remove the given callback for `event` or all
+ * registered callbacks.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.off =
+Emitter.prototype.removeListener =
+Emitter.prototype.removeAllListeners =
+Emitter.prototype.removeEventListener = function(event, fn){
+ this._callbacks = this._callbacks || {};
+
+ // all
+ if (0 == arguments.length) {
+ this._callbacks = {};
+ return this;
+ }
+
+ // specific event
+ var callbacks = this._callbacks[event];
+ if (!callbacks) return this;
+
+ // remove all handlers
+ if (1 == arguments.length) {
+ delete this._callbacks[event];
+ return this;
+ }
+
+ // remove specific handler
+ var cb;
+ for (var i = 0; i < callbacks.length; i++) {
+ cb = callbacks[i];
+ if (cb === fn || cb.fn === fn) {
+ callbacks.splice(i, 1);
+ break;
+ }
+ }
+ return this;
+};
+
+/**
+ * Emit `event` with the given args.
+ *
+ * @param {String} event
+ * @param {Mixed} ...
+ * @return {Emitter}
+ */
+
+Emitter.prototype.emit = function(event){
+ this._callbacks = this._callbacks || {};
+ var args = [].slice.call(arguments, 1)
+ , callbacks = this._callbacks[event];
+
+ if (callbacks) {
+ callbacks = callbacks.slice(0);
+ for (var i = 0, len = callbacks.length; i < len; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+
+ return this;
+};
+
+/**
+ * Return array of callbacks for `event`.
+ *
+ * @param {String} event
+ * @return {Array}
+ * @api public
+ */
+
+Emitter.prototype.listeners = function(event){
+ this._callbacks = this._callbacks || {};
+ return this._callbacks[event] || [];
+};
+
+/**
+ * Check if this emitter has `event` handlers.
+ *
+ * @param {String} event
+ * @return {Boolean}
+ * @api public
+ */
+
+Emitter.prototype.hasListeners = function(event){
+ return !! this.listeners(event).length;
+};
+
+},{}],10:[function(_dereq_,module,exports){
+
+/**
+ * Expose `debug()` as the module.
+ */
+
+module.exports = debug;
+
+/**
+ * Create a debugger with the given `name`.
+ *
+ * @param {String} name
+ * @return {Type}
+ * @api public
+ */
+
+function debug(name) {
+ if (!debug.enabled(name)) return function(){};
+
+ return function(fmt){
+ fmt = coerce(fmt);
+
+ var curr = new Date;
+ var ms = curr - (debug[name] || curr);
+ debug[name] = curr;
+
+ fmt = name
+ + ' '
+ + fmt
+ + ' +' + debug.humanize(ms);
+
+ // This hackery is required for IE8
+ // where `console.log` doesn't have 'apply'
+ window.console
+ && console.log
+ && Function.prototype.apply.call(console.log, console, arguments);
+ }
+}
+
+/**
+ * The currently active debug mode names.
+ */
+
+debug.names = [];
+debug.skips = [];
+
+/**
+ * Enables a debug mode by name. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} name
+ * @api public
+ */
+
+debug.enable = function(name) {
+ try {
+ localStorage.debug = name;
+ } catch(e){}
+
+ var split = (name || '').split(/[\s,]+/)
+ , len = split.length;
+
+ for (var i = 0; i < len; i++) {
+ name = split[i].replace('*', '.*?');
+ if (name[0] === '-') {
+ debug.skips.push(new RegExp('^' + name.substr(1) + '$'));
+ }
+ else {
+ debug.names.push(new RegExp('^' + name + '$'));
+ }
+ }
+};
+
+/**
+ * Disable debug output.
+ *
+ * @api public
+ */
+
+debug.disable = function(){
+ debug.enable('');
+};
+
+/**
+ * Humanize the given `ms`.
+ *
+ * @param {Number} m
+ * @return {String}
+ * @api private
+ */
+
+debug.humanize = function(ms) {
+ var sec = 1000
+ , min = 60 * 1000
+ , hour = 60 * min;
+
+ if (ms >= hour) return (ms / hour).toFixed(1) + 'h';
+ if (ms >= min) return (ms / min).toFixed(1) + 'm';
+ if (ms >= sec) return (ms / sec | 0) + 's';
+ return ms + 'ms';
+};
+
+/**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+
+debug.enabled = function(name) {
+ for (var i = 0, len = debug.skips.length; i < len; i++) {
+ if (debug.skips[i].test(name)) {
+ return false;
+ }
+ }
+ for (var i = 0, len = debug.names.length; i < len; i++) {
+ if (debug.names[i].test(name)) {
+ return true;
+ }
+ }
+ return false;
+};
+
+/**
+ * Coerce `val`.
+ */
+
+function coerce(val) {
+ if (val instanceof Error) return val.stack || val.message;
+ return val;
+}
+
+// persist
+
+try {
+ if (window.localStorage) debug.enable(localStorage.debug);
+} catch(e){}
+
+},{}],11:[function(_dereq_,module,exports){
+
+module.exports = _dereq_('./lib/');
+
+},{"./lib/":12}],12:[function(_dereq_,module,exports){
+
+module.exports = _dereq_('./socket');
+
+/**
+ * Exports parser
+ *
+ * @api public
+ *
+ */
+module.exports.parser = _dereq_('engine.io-parser');
+
+},{"./socket":13,"engine.io-parser":25}],13:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Module dependencies.
+ */
+
+var transports = _dereq_('./transports');
+var Emitter = _dereq_('component-emitter');
+var debug = _dereq_('debug')('engine.io-client:socket');
+var index = _dereq_('indexof');
+var parser = _dereq_('engine.io-parser');
+var parseuri = _dereq_('parseuri');
+var parsejson = _dereq_('parsejson');
+var parseqs = _dereq_('parseqs');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Socket;
+
+/**
+ * Noop function.
+ *
+ * @api private
+ */
+
+function noop(){}
+
+/**
+ * Socket constructor.
+ *
+ * @param {String|Object} uri or options
+ * @param {Object} options
+ * @api public
+ */
+
+function Socket(uri, opts){
+ if (!(this instanceof Socket)) return new Socket(uri, opts);
+
+ opts = opts || {};
+
+ if (uri && 'object' == typeof uri) {
+ opts = uri;
+ uri = null;
+ }
+
+ if (uri) {
+ uri = parseuri(uri);
+ opts.host = uri.host;
+ opts.secure = uri.protocol == 'https' || uri.protocol == 'wss';
+ opts.port = uri.port;
+ if (uri.query) opts.query = uri.query;
+ }
+
+ this.secure = null != opts.secure ? opts.secure :
+ (global.location && 'https:' == location.protocol);
+
+ if (opts.host) {
+ var pieces = opts.host.split(':');
+ opts.hostname = pieces.shift();
+ if (pieces.length) {
+ opts.port = pieces.pop();
+ } else if (!opts.port) {
+ // if no port is specified manually, use the protocol default
+ opts.port = this.secure ? '443' : '80';
+ }
+ }
+
+ this.agent = opts.agent || false;
+ this.hostname = opts.hostname ||
+ (global.location ? location.hostname : 'localhost');
+ this.port = opts.port || (global.location && location.port ?
+ location.port :
+ (this.secure ? 443 : 80));
+ this.query = opts.query || {};
+ if ('string' == typeof this.query) this.query = parseqs.decode(this.query);
+ this.upgrade = false !== opts.upgrade;
+ this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
+ this.forceJSONP = !!opts.forceJSONP;
+ this.jsonp = false !== opts.jsonp;
+ this.forceBase64 = !!opts.forceBase64;
+ this.enablesXDR = !!opts.enablesXDR;
+ this.timestampParam = opts.timestampParam || 't';
+ this.timestampRequests = opts.timestampRequests;
+ this.transports = opts.transports || ['polling', 'websocket'];
+ this.readyState = '';
+ this.writeBuffer = [];
+ this.callbackBuffer = [];
+ this.policyPort = opts.policyPort || 843;
+ this.rememberUpgrade = opts.rememberUpgrade || false;
+ this.binaryType = null;
+ this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
+
+ // SSL options for Node.js client
+ this.pfx = opts.pfx || null;
+ this.key = opts.key || null;
+ this.passphrase = opts.passphrase || null;
+ this.cert = opts.cert || null;
+ this.ca = opts.ca || null;
+ this.ciphers = opts.ciphers || null;
+ this.rejectUnauthorized = opts.rejectUnauthorized || null;
+
+ this.open();
+}
+
+Socket.priorWebsocketSuccess = false;
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Socket.prototype);
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+Socket.protocol = parser.protocol; // this is an int
+
+/**
+ * Expose deps for legacy compatibility
+ * and standalone browser access.
+ */
+
+Socket.Socket = Socket;
+Socket.Transport = _dereq_('./transport');
+Socket.transports = _dereq_('./transports');
+Socket.parser = _dereq_('engine.io-parser');
+
+/**
+ * Creates transport of the given type.
+ *
+ * @param {String} transport name
+ * @return {Transport}
+ * @api private
+ */
+
+Socket.prototype.createTransport = function (name) {
+ debug('creating transport "%s"', name);
+ var query = clone(this.query);
+
+ // append engine.io protocol identifier
+ query.EIO = parser.protocol;
+
+ // transport name
+ query.transport = name;
+
+ // session id if we already have one
+ if (this.id) query.sid = this.id;
+
+ var transport = new transports[name]({
+ agent: this.agent,
+ hostname: this.hostname,
+ port: this.port,
+ secure: this.secure,
+ path: this.path,
+ query: query,
+ forceJSONP: this.forceJSONP,
+ jsonp: this.jsonp,
+ forceBase64: this.forceBase64,
+ enablesXDR: this.enablesXDR,
+ timestampRequests: this.timestampRequests,
+ timestampParam: this.timestampParam,
+ policyPort: this.policyPort,
+ socket: this,
+ pfx: this.pfx,
+ key: this.key,
+ passphrase: this.passphrase,
+ cert: this.cert,
+ ca: this.ca,
+ ciphers: this.ciphers,
+ rejectUnauthorized: this.rejectUnauthorized
+ });
+
+ return transport;
+};
+
+function clone (obj) {
+ var o = {};
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) {
+ o[i] = obj[i];
+ }
+ }
+ return o;
+}
+
+/**
+ * Initializes transport to use and starts probe.
+ *
+ * @api private
+ */
+Socket.prototype.open = function () {
+ var transport;
+ if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') != -1) {
+ transport = 'websocket';
+ } else if (0 == this.transports.length) {
+ // Emit error on next tick so it can be listened to
+ var self = this;
+ setTimeout(function() {
+ self.emit('error', 'No transports available');
+ }, 0);
+ return;
+ } else {
+ transport = this.transports[0];
+ }
+ this.readyState = 'opening';
+
+ // Retry with the next transport if the transport is disabled (jsonp: false)
+ var transport;
+ try {
+ transport = this.createTransport(transport);
+ } catch (e) {
+ this.transports.shift();
+ this.open();
+ return;
+ }
+
+ transport.open();
+ this.setTransport(transport);
+};
+
+/**
+ * Sets the current transport. Disables the existing one (if any).
+ *
+ * @api private
+ */
+
+Socket.prototype.setTransport = function(transport){
+ debug('setting transport %s', transport.name);
+ var self = this;
+
+ if (this.transport) {
+ debug('clearing existing transport %s', this.transport.name);
+ this.transport.removeAllListeners();
+ }
+
+ // set up transport
+ this.transport = transport;
+
+ // set up transport listeners
+ transport
+ .on('drain', function(){
+ self.onDrain();
+ })
+ .on('packet', function(packet){
+ self.onPacket(packet);
+ })
+ .on('error', function(e){
+ self.onError(e);
+ })
+ .on('close', function(){
+ self.onClose('transport close');
+ });
+};
+
+/**
+ * Probes a transport.
+ *
+ * @param {String} transport name
+ * @api private
+ */
+
+Socket.prototype.probe = function (name) {
+ debug('probing transport "%s"', name);
+ var transport = this.createTransport(name, { probe: 1 })
+ , failed = false
+ , self = this;
+
+ Socket.priorWebsocketSuccess = false;
+
+ function onTransportOpen(){
+ if (self.onlyBinaryUpgrades) {
+ var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
+ failed = failed || upgradeLosesBinary;
+ }
+ if (failed) return;
+
+ debug('probe transport "%s" opened', name);
+ transport.send([{ type: 'ping', data: 'probe' }]);
+ transport.once('packet', function (msg) {
+ if (failed) return;
+ if ('pong' == msg.type && 'probe' == msg.data) {
+ debug('probe transport "%s" pong', name);
+ self.upgrading = true;
+ self.emit('upgrading', transport);
+ if (!transport) return;
+ Socket.priorWebsocketSuccess = 'websocket' == transport.name;
+
+ debug('pausing current transport "%s"', self.transport.name);
+ self.transport.pause(function () {
+ if (failed) return;
+ if ('closed' == self.readyState) return;
+ debug('changing transport and sending upgrade packet');
+
+ cleanup();
+
+ self.setTransport(transport);
+ transport.send([{ type: 'upgrade' }]);
+ self.emit('upgrade', transport);
+ transport = null;
+ self.upgrading = false;
+ self.flush();
+ });
+ } else {
+ debug('probe transport "%s" failed', name);
+ var err = new Error('probe error');
+ err.transport = transport.name;
+ self.emit('upgradeError', err);
+ }
+ });
+ }
+
+ function freezeTransport() {
+ if (failed) return;
+
+ // Any callback called by transport should be ignored since now
+ failed = true;
+
+ cleanup();
+
+ transport.close();
+ transport = null;
+ }
+
+ //Handle any error that happens while probing
+ function onerror(err) {
+ var error = new Error('probe error: ' + err);
+ error.transport = transport.name;
+
+ freezeTransport();
+
+ debug('probe transport "%s" failed because of error: %s', name, err);
+
+ self.emit('upgradeError', error);
+ }
+
+ function onTransportClose(){
+ onerror("transport closed");
+ }
+
+ //When the socket is closed while we're probing
+ function onclose(){
+ onerror("socket closed");
+ }
+
+ //When the socket is upgraded while we're probing
+ function onupgrade(to){
+ if (transport && to.name != transport.name) {
+ debug('"%s" works - aborting "%s"', to.name, transport.name);
+ freezeTransport();
+ }
+ }
+
+ //Remove all listeners on the transport and on self
+ function cleanup(){
+ transport.removeListener('open', onTransportOpen);
+ transport.removeListener('error', onerror);
+ transport.removeListener('close', onTransportClose);
+ self.removeListener('close', onclose);
+ self.removeListener('upgrading', onupgrade);
+ }
+
+ transport.once('open', onTransportOpen);
+ transport.once('error', onerror);
+ transport.once('close', onTransportClose);
+
+ this.once('close', onclose);
+ this.once('upgrading', onupgrade);
+
+ transport.open();
+
+};
+
+/**
+ * Called when connection is deemed open.
+ *
+ * @api public
+ */
+
+Socket.prototype.onOpen = function () {
+ debug('socket open');
+ this.readyState = 'open';
+ Socket.priorWebsocketSuccess = 'websocket' == this.transport.name;
+ this.emit('open');
+ this.flush();
+
+ // we check for `readyState` in case an `open`
+ // listener already closed the socket
+ if ('open' == this.readyState && this.upgrade && this.transport.pause) {
+ debug('starting upgrade probes');
+ for (var i = 0, l = this.upgrades.length; i < l; i++) {
+ this.probe(this.upgrades[i]);
+ }
+ }
+};
+
+/**
+ * Handles a packet.
+ *
+ * @api private
+ */
+
+Socket.prototype.onPacket = function (packet) {
+ if ('opening' == this.readyState || 'open' == this.readyState) {
+ debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
+
+ this.emit('packet', packet);
+
+ // Socket is live - any packet counts
+ this.emit('heartbeat');
+
+ switch (packet.type) {
+ case 'open':
+ this.onHandshake(parsejson(packet.data));
+ break;
+
+ case 'pong':
+ this.setPing();
+ break;
+
+ case 'error':
+ var err = new Error('server error');
+ err.code = packet.data;
+ this.emit('error', err);
+ break;
+
+ case 'message':
+ this.emit('data', packet.data);
+ this.emit('message', packet.data);
+ break;
+ }
+ } else {
+ debug('packet received with socket readyState "%s"', this.readyState);
+ }
+};
+
+/**
+ * Called upon handshake completion.
+ *
+ * @param {Object} handshake obj
+ * @api private
+ */
+
+Socket.prototype.onHandshake = function (data) {
+ this.emit('handshake', data);
+ this.id = data.sid;
+ this.transport.query.sid = data.sid;
+ this.upgrades = this.filterUpgrades(data.upgrades);
+ this.pingInterval = data.pingInterval;
+ this.pingTimeout = data.pingTimeout;
+ this.onOpen();
+ // In case open handler closes socket
+ if ('closed' == this.readyState) return;
+ this.setPing();
+
+ // Prolong liveness of socket on heartbeat
+ this.removeListener('heartbeat', this.onHeartbeat);
+ this.on('heartbeat', this.onHeartbeat);
+};
+
+/**
+ * Resets ping timeout.
+ *
+ * @api private
+ */
+
+Socket.prototype.onHeartbeat = function (timeout) {
+ clearTimeout(this.pingTimeoutTimer);
+ var self = this;
+ self.pingTimeoutTimer = setTimeout(function () {
+ if ('closed' == self.readyState) return;
+ self.onClose('ping timeout');
+ }, timeout || (self.pingInterval + self.pingTimeout));
+};
+
+/**
+ * Pings server every `this.pingInterval` and expects response
+ * within `this.pingTimeout` or closes connection.
+ *
+ * @api private
+ */
+
+Socket.prototype.setPing = function () {
+ var self = this;
+ clearTimeout(self.pingIntervalTimer);
+ self.pingIntervalTimer = setTimeout(function () {
+ debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
+ self.ping();
+ self.onHeartbeat(self.pingTimeout);
+ }, self.pingInterval);
+};
+
+/**
+* Sends a ping packet.
+*
+* @api public
+*/
+
+Socket.prototype.ping = function () {
+ this.sendPacket('ping');
+};
+
+/**
+ * Called on `drain` event
+ *
+ * @api private
+ */
+
+Socket.prototype.onDrain = function() {
+ for (var i = 0; i < this.prevBufferLen; i++) {
+ if (this.callbackBuffer[i]) {
+ this.callbackBuffer[i]();
+ }
+ }
+
+ this.writeBuffer.splice(0, this.prevBufferLen);
+ this.callbackBuffer.splice(0, this.prevBufferLen);
+
+ // setting prevBufferLen = 0 is very important
+ // for example, when upgrading, upgrade packet is sent over,
+ // and a nonzero prevBufferLen could cause problems on `drain`
+ this.prevBufferLen = 0;
+
+ if (this.writeBuffer.length == 0) {
+ this.emit('drain');
+ } else {
+ this.flush();
+ }
+};
+
+/**
+ * Flush write buffers.
+ *
+ * @api private
+ */
+
+Socket.prototype.flush = function () {
+ if ('closed' != this.readyState && this.transport.writable &&
+ !this.upgrading && this.writeBuffer.length) {
+ debug('flushing %d packets in socket', this.writeBuffer.length);
+ this.transport.send(this.writeBuffer);
+ // keep track of current length of writeBuffer
+ // splice writeBuffer and callbackBuffer on `drain`
+ this.prevBufferLen = this.writeBuffer.length;
+ this.emit('flush');
+ }
+};
+
+/**
+ * Sends a message.
+ *
+ * @param {String} message.
+ * @param {Function} callback function.
+ * @return {Socket} for chaining.
+ * @api public
+ */
+
+Socket.prototype.write =
+Socket.prototype.send = function (msg, fn) {
+ this.sendPacket('message', msg, fn);
+ return this;
+};
+
+/**
+ * Sends a packet.
+ *
+ * @param {String} packet type.
+ * @param {String} data.
+ * @param {Function} callback function.
+ * @api private
+ */
+
+Socket.prototype.sendPacket = function (type, data, fn) {
+ if ('closing' == this.readyState || 'closed' == this.readyState) {
+ return;
+ }
+
+ var packet = { type: type, data: data };
+ this.emit('packetCreate', packet);
+ this.writeBuffer.push(packet);
+ this.callbackBuffer.push(fn);
+ this.flush();
+};
+
+/**
+ * Closes the connection.
+ *
+ * @api private
+ */
+
+Socket.prototype.close = function () {
+ if ('opening' == this.readyState || 'open' == this.readyState) {
+ this.readyState = 'closing';
+
+ var self = this;
+
+ function close() {
+ self.onClose('forced close');
+ debug('socket closing - telling transport to close');
+ self.transport.close();
+ }
+
+ function cleanupAndClose() {
+ self.removeListener('upgrade', cleanupAndClose);
+ self.removeListener('upgradeError', cleanupAndClose);
+ close();
+ }
+
+ function waitForUpgrade() {
+ // wait for upgrade to finish since we can't send packets while pausing a transport
+ self.once('upgrade', cleanupAndClose);
+ self.once('upgradeError', cleanupAndClose);
+ }
+
+ if (this.writeBuffer.length) {
+ this.once('drain', function() {
+ if (this.upgrading) {
+ waitForUpgrade();
+ } else {
+ close();
+ }
+ });
+ } else if (this.upgrading) {
+ waitForUpgrade();
+ } else {
+ close();
+ }
+ }
+
+ return this;
+};
+
+/**
+ * Called upon transport error
+ *
+ * @api private
+ */
+
+Socket.prototype.onError = function (err) {
+ debug('socket error %j', err);
+ Socket.priorWebsocketSuccess = false;
+ this.emit('error', err);
+ this.onClose('transport error', err);
+};
+
+/**
+ * Called upon transport close.
+ *
+ * @api private
+ */
+
+Socket.prototype.onClose = function (reason, desc) {
+ if ('opening' == this.readyState || 'open' == this.readyState || 'closing' == this.readyState) {
+ debug('socket close with reason: "%s"', reason);
+ var self = this;
+
+ // clear timers
+ clearTimeout(this.pingIntervalTimer);
+ clearTimeout(this.pingTimeoutTimer);
+
+ // clean buffers in next tick, so developers can still
+ // grab the buffers on `close` event
+ setTimeout(function() {
+ self.writeBuffer = [];
+ self.callbackBuffer = [];
+ self.prevBufferLen = 0;
+ }, 0);
+
+ // stop event from firing again for transport
+ this.transport.removeAllListeners('close');
+
+ // ensure transport won't stay open
+ this.transport.close();
+
+ // ignore further transport communication
+ this.transport.removeAllListeners();
+
+ // set ready state
+ this.readyState = 'closed';
+
+ // clear session id
+ this.id = null;
+
+ // emit close event
+ this.emit('close', reason, desc);
+ }
+};
+
+/**
+ * Filters upgrades, returning only those matching client transports.
+ *
+ * @param {Array} server upgrades
+ * @api private
+ *
+ */
+
+Socket.prototype.filterUpgrades = function (upgrades) {
+ var filteredUpgrades = [];
+ for (var i = 0, j = upgrades.length; i<j; i++) {
+ if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
+ }
+ return filteredUpgrades;
+};
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./transport":14,"./transports":15,"component-emitter":9,"debug":22,"engine.io-parser":25,"indexof":42,"parsejson":34,"parseqs":35,"parseuri":36}],14:[function(_dereq_,module,exports){
+/**
+ * Module dependencies.
+ */
+
+var parser = _dereq_('engine.io-parser');
+var Emitter = _dereq_('component-emitter');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Transport;
+
+/**
+ * Transport abstract constructor.
+ *
+ * @param {Object} options.
+ * @api private
+ */
+
+function Transport (opts) {
+ this.path = opts.path;
+ this.hostname = opts.hostname;
+ this.port = opts.port;
+ this.secure = opts.secure;
+ this.query = opts.query;
+ this.timestampParam = opts.timestampParam;
+ this.timestampRequests = opts.timestampRequests;
+ this.readyState = '';
+ this.agent = opts.agent || false;
+ this.socket = opts.socket;
+ this.enablesXDR = opts.enablesXDR;
+
+ // SSL options for Node.js client
+ this.pfx = opts.pfx;
+ this.key = opts.key;
+ this.passphrase = opts.passphrase;
+ this.cert = opts.cert;
+ this.ca = opts.ca;
+ this.ciphers = opts.ciphers;
+ this.rejectUnauthorized = opts.rejectUnauthorized;
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Transport.prototype);
+
+/**
+ * A counter used to prevent collisions in the timestamps used
+ * for cache busting.
+ */
+
+Transport.timestamps = 0;
+
+/**
+ * Emits an error.
+ *
+ * @param {String} str
+ * @return {Transport} for chaining
+ * @api public
+ */
+
+Transport.prototype.onError = function (msg, desc) {
+ var err = new Error(msg);
+ err.type = 'TransportError';
+ err.description = desc;
+ this.emit('error', err);
+ return this;
+};
+
+/**
+ * Opens the transport.
+ *
+ * @api public
+ */
+
+Transport.prototype.open = function () {
+ if ('closed' == this.readyState || '' == this.readyState) {
+ this.readyState = 'opening';
+ this.doOpen();
+ }
+
+ return this;
+};
+
+/**
+ * Closes the transport.
+ *
+ * @api private
+ */
+
+Transport.prototype.close = function () {
+ if ('opening' == this.readyState || 'open' == this.readyState) {
+ this.doClose();
+ this.onClose();
+ }
+
+ return this;
+};
+
+/**
+ * Sends multiple packets.
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+Transport.prototype.send = function(packets){
+ if ('open' == this.readyState) {
+ this.write(packets);
+ } else {
+ throw new Error('Transport not open');
+ }
+};
+
+/**
+ * Called upon open
+ *
+ * @api private
+ */
+
+Transport.prototype.onOpen = function () {
+ this.readyState = 'open';
+ this.writable = true;
+ this.emit('open');
+};
+
+/**
+ * Called with data.
+ *
+ * @param {String} data
+ * @api private
+ */
+
+Transport.prototype.onData = function(data){
+ var packet = parser.decodePacket(data, this.socket.binaryType);
+ this.onPacket(packet);
+};
+
+/**
+ * Called with a decoded packet.
+ */
+
+Transport.prototype.onPacket = function (packet) {
+ this.emit('packet', packet);
+};
+
+/**
+ * Called upon close.
+ *
+ * @api private
+ */
+
+Transport.prototype.onClose = function () {
+ this.readyState = 'closed';
+ this.emit('close');
+};
+
+},{"component-emitter":9,"engine.io-parser":25}],15:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Module dependencies
+ */
+
+var XMLHttpRequest = _dereq_('xmlhttprequest');
+var XHR = _dereq_('./polling-xhr');
+var JSONP = _dereq_('./polling-jsonp');
+var websocket = _dereq_('./websocket');
+
+/**
+ * Export transports.
+ */
+
+exports.polling = polling;
+exports.websocket = websocket;
+
+/**
+ * Polling transport polymorphic constructor.
+ * Decides on xhr vs jsonp based on feature detection.
+ *
+ * @api private
+ */
+
+function polling(opts){
+ var xhr;
+ var xd = false;
+ var xs = false;
+ var jsonp = false !== opts.jsonp;
+
+ if (global.location) {
+ var isSSL = 'https:' == location.protocol;
+ var port = location.port;
+
+ // some user agents have empty `location.port`
+ if (!port) {
+ port = isSSL ? 443 : 80;
+ }
+
+ xd = opts.hostname != location.hostname || port != opts.port;
+ xs = opts.secure != isSSL;
+ }
+
+ opts.xdomain = xd;
+ opts.xscheme = xs;
+ xhr = new XMLHttpRequest(opts);
+
+ if ('open' in xhr && !opts.forceJSONP) {
+ return new XHR(opts);
+ } else {
+ if (!jsonp) throw new Error('JSONP disabled');
+ return new JSONP(opts);
+ }
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./polling-jsonp":16,"./polling-xhr":17,"./websocket":19,"xmlhttprequest":20}],16:[function(_dereq_,module,exports){
+(function (global){
+
+/**
+ * Module requirements.
+ */
+
+var Polling = _dereq_('./polling');
+var inherit = _dereq_('component-inherit');
+
+/**
+ * Module exports.
+ */
+
+module.exports = JSONPPolling;
+
+/**
+ * Cached regular expressions.
+ */
+
+var rNewline = /\n/g;
+var rEscapedNewline = /\\n/g;
+
+/**
+ * Global JSONP callbacks.
+ */
+
+var callbacks;
+
+/**
+ * Callbacks count.
+ */
+
+var index = 0;
+
+/**
+ * Noop.
+ */
+
+function empty () { }
+
+/**
+ * JSONP Polling constructor.
+ *
+ * @param {Object} opts.
+ * @api public
+ */
+
+function JSONPPolling (opts) {
+ Polling.call(this, opts);
+
+ this.query = this.query || {};
+
+ // define global callbacks array if not present
+ // we do this here (lazily) to avoid unneeded global pollution
+ if (!callbacks) {
+ // we need to consider multiple engines in the same page
+ if (!global.___eio) global.___eio = [];
+ callbacks = global.___eio;
+ }
+
+ // callback identifier
+ this.index = callbacks.length;
+
+ // add callback to jsonp global
+ var self = this;
+ callbacks.push(function (msg) {
+ self.onData(msg);
+ });
+
+ // append to query string
+ this.query.j = this.index;
+
+ // prevent spurious errors from being emitted when the window is unloaded
+ if (global.document && global.addEventListener) {
+ global.addEventListener('beforeunload', function () {
+ if (self.script) self.script.onerror = empty;
+ }, false);
+ }
+}
+
+/**
+ * Inherits from Polling.
+ */
+
+inherit(JSONPPolling, Polling);
+
+/*
+ * JSONP only supports binary as base64 encoded strings
+ */
+
+JSONPPolling.prototype.supportsBinary = false;
+
+/**
+ * Closes the socket.
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doClose = function () {
+ if (this.script) {
+ this.script.parentNode.removeChild(this.script);
+ this.script = null;
+ }
+
+ if (this.form) {
+ this.form.parentNode.removeChild(this.form);
+ this.form = null;
+ this.iframe = null;
+ }
+
+ Polling.prototype.doClose.call(this);
+};
+
+/**
+ * Starts a poll cycle.
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doPoll = function () {
+ var self = this;
+ var script = document.createElement('script');
+
+ if (this.script) {
+ this.script.parentNode.removeChild(this.script);
+ this.script = null;
+ }
+
+ script.async = true;
+ script.src = this.uri();
+ script.onerror = function(e){
+ self.onError('jsonp poll error',e);
+ };
+
+ var insertAt = document.getElementsByTagName('script')[0];
+ insertAt.parentNode.insertBefore(script, insertAt);
+ this.script = script;
+
+ var isUAgecko = 'undefined' != typeof navigator && /gecko/i.test(navigator.userAgent);
+
+ if (isUAgecko) {
+ setTimeout(function () {
+ var iframe = document.createElement('iframe');
+ document.body.appendChild(iframe);
+ document.body.removeChild(iframe);
+ }, 100);
+ }
+};
+
+/**
+ * Writes with a hidden iframe.
+ *
+ * @param {String} data to send
+ * @param {Function} called upon flush.
+ * @api private
+ */
+
+JSONPPolling.prototype.doWrite = function (data, fn) {
+ var self = this;
+
+ if (!this.form) {
+ var form = document.createElement('form');
+ var area = document.createElement('textarea');
+ var id = this.iframeId = 'eio_iframe_' + this.index;
+ var iframe;
+
+ form.className = 'socketio';
+ form.style.position = 'absolute';
+ form.style.top = '-1000px';
+ form.style.left = '-1000px';
+ form.target = id;
+ form.method = 'POST';
+ form.setAttribute('accept-charset', 'utf-8');
+ area.name = 'd';
+ form.appendChild(area);
+ document.body.appendChild(form);
+
+ this.form = form;
+ this.area = area;
+ }
+
+ this.form.action = this.uri();
+
+ function complete () {
+ initIframe();
+ fn();
+ }
+
+ function initIframe () {
+ if (self.iframe) {
+ try {
+ self.form.removeChild(self.iframe);
+ } catch (e) {
+ self.onError('jsonp polling iframe removal error', e);
+ }
+ }
+
+ try {
+ // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+ var html = '<iframe src="javascript:0" name="'+ self.iframeId +'">';
+ iframe = document.createElement(html);
+ } catch (e) {
+ iframe = document.createElement('iframe');
+ iframe.name = self.iframeId;
+ iframe.src = 'javascript:0';
+ }
+
+ iframe.id = self.iframeId;
+
+ self.form.appendChild(iframe);
+ self.iframe = iframe;
+ }
+
+ initIframe();
+
+ // escape \n to prevent it from being converted into \r\n by some UAs
+ // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
+ data = data.replace(rEscapedNewline, '\\\n');
+ this.area.value = data.replace(rNewline, '\\n');
+
+ try {
+ this.form.submit();
+ } catch(e) {}
+
+ if (this.iframe.attachEvent) {
+ this.iframe.onreadystatechange = function(){
+ if (self.iframe.readyState == 'complete') {
+ complete();
+ }
+ };
+ } else {
+ this.iframe.onload = complete;
+ }
+};
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./polling":18,"component-inherit":21}],17:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Module requirements.
+ */
+
+var XMLHttpRequest = _dereq_('xmlhttprequest');
+var Polling = _dereq_('./polling');
+var Emitter = _dereq_('component-emitter');
+var inherit = _dereq_('component-inherit');
+var debug = _dereq_('debug')('engine.io-client:polling-xhr');
+
+/**
+ * Module exports.
+ */
+
+module.exports = XHR;
+module.exports.Request = Request;
+
+/**
+ * Empty function
+ */
+
+function empty(){}
+
+/**
+ * XHR Polling constructor.
+ *
+ * @param {Object} opts
+ * @api public
+ */
+
+function XHR(opts){
+ Polling.call(this, opts);
+
+ if (global.location) {
+ var isSSL = 'https:' == location.protocol;
+ var port = location.port;
+
+ // some user agents have empty `location.port`
+ if (!port) {
+ port = isSSL ? 443 : 80;
+ }
+
+ this.xd = opts.hostname != global.location.hostname ||
+ port != opts.port;
+ this.xs = opts.secure != isSSL;
+ }
+}
+
+/**
+ * Inherits from Polling.
+ */
+
+inherit(XHR, Polling);
+
+/**
+ * XHR supports binary
+ */
+
+XHR.prototype.supportsBinary = true;
+
+/**
+ * Creates a request.
+ *
+ * @param {String} method
+ * @api private
+ */
+
+XHR.prototype.request = function(opts){
+ opts = opts || {};
+ opts.uri = this.uri();
+ opts.xd = this.xd;
+ opts.xs = this.xs;
+ opts.agent = this.agent || false;
+ opts.supportsBinary = this.supportsBinary;
+ opts.enablesXDR = this.enablesXDR;
+
+ // SSL options for Node.js client
+ opts.pfx = this.pfx;
+ opts.key = this.key;
+ opts.passphrase = this.passphrase;
+ opts.cert = this.cert;
+ opts.ca = this.ca;
+ opts.ciphers = this.ciphers;
+ opts.rejectUnauthorized = this.rejectUnauthorized;
+
+ return new Request(opts);
+};
+
+/**
+ * Sends data.
+ *
+ * @param {String} data to send.
+ * @param {Function} called upon flush.
+ * @api private
+ */
+
+XHR.prototype.doWrite = function(data, fn){
+ var isBinary = typeof data !== 'string' && data !== undefined;
+ var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
+ var self = this;
+ req.on('success', fn);
+ req.on('error', function(err){
+ self.onError('xhr post error', err);
+ });
+ this.sendXhr = req;
+};
+
+/**
+ * Starts a poll cycle.
+ *
+ * @api private
+ */
+
+XHR.prototype.doPoll = function(){
+ debug('xhr poll');
+ var req = this.request();
+ var self = this;
+ req.on('data', function(data){
+ self.onData(data);
+ });
+ req.on('error', function(err){
+ self.onError('xhr poll error', err);
+ });
+ this.pollXhr = req;
+};
+
+/**
+ * Request constructor
+ *
+ * @param {Object} options
+ * @api public
+ */
+
+function Request(opts){
+ this.method = opts.method || 'GET';
+ this.uri = opts.uri;
+ this.xd = !!opts.xd;
+ this.xs = !!opts.xs;
+ this.async = false !== opts.async;
+ this.data = undefined != opts.data ? opts.data : null;
+ this.agent = opts.agent;
+ this.isBinary = opts.isBinary;
+ this.supportsBinary = opts.supportsBinary;
+ this.enablesXDR = opts.enablesXDR;
+
+ // SSL options for Node.js client
+ this.pfx = opts.pfx;
+ this.key = opts.key;
+ this.passphrase = opts.passphrase;
+ this.cert = opts.cert;
+ this.ca = opts.ca;
+ this.ciphers = opts.ciphers;
+ this.rejectUnauthorized = opts.rejectUnauthorized;
+
+ this.create();
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Request.prototype);
+
+/**
+ * Creates the XHR object and sends the request.
+ *
+ * @api private
+ */
+
+Request.prototype.create = function(){
+ var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
+
+ // SSL options for Node.js client
+ opts.pfx = this.pfx;
+ opts.key = this.key;
+ opts.passphrase = this.passphrase;
+ opts.cert = this.cert;
+ opts.ca = this.ca;
+ opts.ciphers = this.ciphers;
+ opts.rejectUnauthorized = this.rejectUnauthorized;
+
+ var xhr = this.xhr = new XMLHttpRequest(opts);
+ var self = this;
+
+ try {
+ debug('xhr open %s: %s', this.method, this.uri);
+ xhr.open(this.method, this.uri, this.async);
+ if (this.supportsBinary) {
+ // This has to be done after open because Firefox is stupid
+ // http://stackoverflow.com/questions/13216903/get-binary-data-with-xmlhttprequest-in-a-firefox-extension
+ xhr.responseType = 'arraybuffer';
+ }
+
+ if ('POST' == this.method) {
+ try {
+ if (this.isBinary) {
+ xhr.setRequestHeader('Content-type', 'application/octet-stream');
+ } else {
+ xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
+ }
+ } catch (e) {}
+ }
+
+ // ie6 check
+ if ('withCredentials' in xhr) {
+ xhr.withCredentials = true;
+ }
+
+ if (this.hasXDR()) {
+ xhr.onload = function(){
+ self.onLoad();
+ };
+ xhr.onerror = function(){
+ self.onError(xhr.responseText);
+ };
+ } else {
+ xhr.onreadystatechange = function(){
+ if (4 != xhr.readyState) return;
+ if (200 == xhr.status || 1223 == xhr.status) {
+ self.onLoad();
+ } else {
+ // make sure the `error` event handler that's user-set
+ // does not throw in the same tick and gets caught here
+ setTimeout(function(){
+ self.onError(xhr.status);
+ }, 0);
+ }
+ };
+ }
+
+ debug('xhr data %s', this.data);
+ xhr.send(this.data);
+ } catch (e) {
+ // Need to defer since .create() is called directly fhrom the constructor
+ // and thus the 'error' event can only be only bound *after* this exception
+ // occurs. Therefore, also, we cannot throw here at all.
+ setTimeout(function() {
+ self.onError(e);
+ }, 0);
+ return;
+ }
+
+ if (global.document) {
+ this.index = Request.requestsCount++;
+ Request.requests[this.index] = this;
+ }
+};
+
+/**
+ * Called upon successful response.
+ *
+ * @api private
+ */
+
+Request.prototype.onSuccess = function(){
+ this.emit('success');
+ this.cleanup();
+};
+
+/**
+ * Called if we have data.
+ *
+ * @api private
+ */
+
+Request.prototype.onData = function(data){
+ this.emit('data', data);
+ this.onSuccess();
+};
+
+/**
+ * Called upon error.
+ *
+ * @api private
+ */
+
+Request.prototype.onError = function(err){
+ this.emit('error', err);
+ this.cleanup(true);
+};
+
+/**
+ * Cleans up house.
+ *
+ * @api private
+ */
+
+Request.prototype.cleanup = function(fromError){
+ if ('undefined' == typeof this.xhr || null === this.xhr) {
+ return;
+ }
+ // xmlhttprequest
+ if (this.hasXDR()) {
+ this.xhr.onload = this.xhr.onerror = empty;
+ } else {
+ this.xhr.onreadystatechange = empty;
+ }
+
+ if (fromError) {
+ try {
+ this.xhr.abort();
+ } catch(e) {}
+ }
+
+ if (global.document) {
+ delete Request.requests[this.index];
+ }
+
+ this.xhr = null;
+};
+
+/**
+ * Called upon load.
+ *
+ * @api private
+ */
+
+Request.prototype.onLoad = function(){
+ var data;
+ try {
+ var contentType;
+ try {
+ contentType = this.xhr.getResponseHeader('Content-Type').split(';')[0];
+ } catch (e) {}
+ if (contentType === 'application/octet-stream') {
+ data = this.xhr.response;
+ } else {
+ if (!this.supportsBinary) {
+ data = this.xhr.responseText;
+ } else {
+ data = 'ok';
+ }
+ }
+ } catch (e) {
+ this.onError(e);
+ }
+ if (null != data) {
+ this.onData(data);
+ }
+};
+
+/**
+ * Check if it has XDomainRequest.
+ *
+ * @api private
+ */
+
+Request.prototype.hasXDR = function(){
+ return 'undefined' !== typeof global.XDomainRequest && !this.xs && this.enablesXDR;
+};
+
+/**
+ * Aborts the request.
+ *
+ * @api public
+ */
+
+Request.prototype.abort = function(){
+ this.cleanup();
+};
+
+/**
+ * Aborts pending requests when unloading the window. This is needed to prevent
+ * memory leaks (e.g. when using IE) and to ensure that no spurious error is
+ * emitted.
+ */
+
+if (global.document) {
+ Request.requestsCount = 0;
+ Request.requests = {};
+ if (global.attachEvent) {
+ global.attachEvent('onunload', unloadHandler);
+ } else if (global.addEventListener) {
+ global.addEventListener('beforeunload', unloadHandler, false);
+ }
+}
+
+function unloadHandler() {
+ for (var i in Request.requests) {
+ if (Request.requests.hasOwnProperty(i)) {
+ Request.requests[i].abort();
+ }
+ }
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./polling":18,"component-emitter":9,"component-inherit":21,"debug":22,"xmlhttprequest":20}],18:[function(_dereq_,module,exports){
+/**
+ * Module dependencies.
+ */
+
+var Transport = _dereq_('../transport');
+var parseqs = _dereq_('parseqs');
+var parser = _dereq_('engine.io-parser');
+var inherit = _dereq_('component-inherit');
+var debug = _dereq_('debug')('engine.io-client:polling');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Polling;
+
+/**
+ * Is XHR2 supported?
+ */
+
+var hasXHR2 = (function() {
+ var XMLHttpRequest = _dereq_('xmlhttprequest');
+ var xhr = new XMLHttpRequest({ xdomain: false });
+ return null != xhr.responseType;
+})();
+
+/**
+ * Polling interface.
+ *
+ * @param {Object} opts
+ * @api private
+ */
+
+function Polling(opts){
+ var forceBase64 = (opts && opts.forceBase64);
+ if (!hasXHR2 || forceBase64) {
+ this.supportsBinary = false;
+ }
+ Transport.call(this, opts);
+}
+
+/**
+ * Inherits from Transport.
+ */
+
+inherit(Polling, Transport);
+
+/**
+ * Transport name.
+ */
+
+Polling.prototype.name = 'polling';
+
+/**
+ * Opens the socket (triggers polling). We write a PING message to determine
+ * when the transport is open.
+ *
+ * @api private
+ */
+
+Polling.prototype.doOpen = function(){
+ this.poll();
+};
+
+/**
+ * Pauses polling.
+ *
+ * @param {Function} callback upon buffers are flushed and transport is paused
+ * @api private
+ */
+
+Polling.prototype.pause = function(onPause){
+ var pending = 0;
+ var self = this;
+
+ this.readyState = 'pausing';
+
+ function pause(){
+ debug('paused');
+ self.readyState = 'paused';
+ onPause();
+ }
+
+ if (this.polling || !this.writable) {
+ var total = 0;
+
+ if (this.polling) {
+ debug('we are currently polling - waiting to pause');
+ total++;
+ this.once('pollComplete', function(){
+ debug('pre-pause polling complete');
+ --total || pause();
+ });
+ }
+
+ if (!this.writable) {
+ debug('we are currently writing - waiting to pause');
+ total++;
+ this.once('drain', function(){
+ debug('pre-pause writing complete');
+ --total || pause();
+ });
+ }
+ } else {
+ pause();
+ }
+};
+
+/**
+ * Starts polling cycle.
+ *
+ * @api public
+ */
+
+Polling.prototype.poll = function(){
+ debug('polling');
+ this.polling = true;
+ this.doPoll();
+ this.emit('poll');
+};
+
+/**
+ * Overloads onData to detect payloads.
+ *
+ * @api private
+ */
+
+Polling.prototype.onData = function(data){
+ var self = this;
+ debug('polling got data %s', data);
+ var callback = function(packet, index, total) {
+ // if its the first message we consider the transport open
+ if ('opening' == self.readyState) {
+ self.onOpen();
+ }
+
+ // if its a close packet, we close the ongoing requests
+ if ('close' == packet.type) {
+ self.onClose();
+ return false;
+ }
+
+ // otherwise bypass onData and handle the message
+ self.onPacket(packet);
+ };
+
+ // decode payload
+ parser.decodePayload(data, this.socket.binaryType, callback);
+
+ // if an event did not trigger closing
+ if ('closed' != this.readyState) {
+ // if we got data we're not polling
+ this.polling = false;
+ this.emit('pollComplete');
+
+ if ('open' == this.readyState) {
+ this.poll();
+ } else {
+ debug('ignoring poll - transport state "%s"', this.readyState);
+ }
+ }
+};
+
+/**
+ * For polling, send a close packet.
+ *
+ * @api private
+ */
+
+Polling.prototype.doClose = function(){
+ var self = this;
+
+ function close(){
+ debug('writing close packet');
+ self.write([{ type: 'close' }]);
+ }
+
+ if ('open' == this.readyState) {
+ debug('transport open - closing');
+ close();
+ } else {
+ // in case we're trying to close while
+ // handshaking is in progress (GH-164)
+ debug('transport not open - deferring close');
+ this.once('open', close);
+ }
+};
+
+/**
+ * Writes a packets payload.
+ *
+ * @param {Array} data packets
+ * @param {Function} drain callback
+ * @api private
+ */
+
+Polling.prototype.write = function(packets){
+ var self = this;
+ this.writable = false;
+ var callbackfn = function() {
+ self.writable = true;
+ self.emit('drain');
+ };
+
+ var self = this;
+ parser.encodePayload(packets, this.supportsBinary, function(data) {
+ self.doWrite(data, callbackfn);
+ });
+};
+
+/**
+ * Generates uri for connection.
+ *
+ * @api private
+ */
+
+Polling.prototype.uri = function(){
+ var query = this.query || {};
+ var schema = this.secure ? 'https' : 'http';
+ var port = '';
+
+ // cache busting is forced
+ if (false !== this.timestampRequests) {
+ query[this.timestampParam] = +new Date + '-' + Transport.timestamps++;
+ }
+
+ if (!this.supportsBinary && !query.sid) {
+ query.b64 = 1;
+ }
+
+ query = parseqs.encode(query);
+
+ // avoid port if default for schema
+ if (this.port && (('https' == schema && this.port != 443) ||
+ ('http' == schema && this.port != 80))) {
+ port = ':' + this.port;
+ }
+
+ // prepend ? to query
+ if (query.length) {
+ query = '?' + query;
+ }
+
+ return schema + '://' + this.hostname + port + this.path + query;
+};
+
+},{"../transport":14,"component-inherit":21,"debug":22,"engine.io-parser":25,"parseqs":35,"xmlhttprequest":20}],19:[function(_dereq_,module,exports){
+/**
+ * Module dependencies.
+ */
+
+var Transport = _dereq_('../transport');
+var parser = _dereq_('engine.io-parser');
+var parseqs = _dereq_('parseqs');
+var inherit = _dereq_('component-inherit');
+var debug = _dereq_('debug')('engine.io-client:websocket');
+
+/**
+ * `ws` exposes a WebSocket-compatible interface in
+ * Node, or the `WebSocket` or `MozWebSocket` globals
+ * in the browser.
+ */
+
+var WebSocket = _dereq_('ws');
+
+/**
+ * Module exports.
+ */
+
+module.exports = WS;
+
+/**
+ * WebSocket transport constructor.
+ *
+ * @api {Object} connection options
+ * @api public
+ */
+
+function WS(opts){
+ var forceBase64 = (opts && opts.forceBase64);
+ if (forceBase64) {
+ this.supportsBinary = false;
+ }
+ Transport.call(this, opts);
+}
+
+/**
+ * Inherits from Transport.
+ */
+
+inherit(WS, Transport);
+
+/**
+ * Transport name.
+ *
+ * @api public
+ */
+
+WS.prototype.name = 'websocket';
+
+/*
+ * WebSockets support binary
+ */
+
+WS.prototype.supportsBinary = true;
+
+/**
+ * Opens socket.
+ *
+ * @api private
+ */
+
+WS.prototype.doOpen = function(){
+ if (!this.check()) {
+ // let probe timeout
+ return;
+ }
+
+ var self = this;
+ var uri = this.uri();
+ var protocols = void(0);
+ var opts = { agent: this.agent };
+
+ // SSL options for Node.js client
+ opts.pfx = this.pfx;
+ opts.key = this.key;
+ opts.passphrase = this.passphrase;
+ opts.cert = this.cert;
+ opts.ca = this.ca;
+ opts.ciphers = this.ciphers;
+ opts.rejectUnauthorized = this.rejectUnauthorized;
+
+ this.ws = new WebSocket(uri, protocols, opts);
+
+ if (this.ws.binaryType === undefined) {
+ this.supportsBinary = false;
+ }
+
+ this.ws.binaryType = 'arraybuffer';
+ this.addEventListeners();
+};
+
+/**
+ * Adds event listeners to the socket
+ *
+ * @api private
+ */
+
+WS.prototype.addEventListeners = function(){
+ var self = this;
+
+ this.ws.onopen = function(){
+ self.onOpen();
+ };
+ this.ws.onclose = function(){
+ self.onClose();
+ };
+ this.ws.onmessage = function(ev){
+ self.onData(ev.data);
+ };
+ this.ws.onerror = function(e){
+ self.onError('websocket error', e);
+ };
+};
+
+/**
+ * Override `onData` to use a timer on iOS.
+ * See: https://gist.github.com/mloughran/2052006
+ *
+ * @api private
+ */
+
+if ('undefined' != typeof navigator
+ && /iPad|iPhone|iPod/i.test(navigator.userAgent)) {
+ WS.prototype.onData = function(data){
+ var self = this;
+ setTimeout(function(){
+ Transport.prototype.onData.call(self, data);
+ }, 0);
+ };
+}
+
+/**
+ * Writes data to socket.
+ *
+ * @param {Array} array of packets.
+ * @api private
+ */
+
+WS.prototype.write = function(packets){
+ var self = this;
+ this.writable = false;
+ // encodePacket efficient as it uses WS framing
+ // no need for encodePayload
+ for (var i = 0, l = packets.length; i < l; i++) {
+ parser.encodePacket(packets[i], this.supportsBinary, function(data) {
+ //Sometimes the websocket has already been closed but the browser didn't
+ //have a chance of informing us about it yet, in that case send will
+ //throw an error
+ try {
+ self.ws.send(data);
+ } catch (e){
+ debug('websocket closed before onclose event');
+ }
+ });
+ }
+
+ function ondrain() {
+ self.writable = true;
+ self.emit('drain');
+ }
+ // fake drain
+ // defer to next tick to allow Socket to clear writeBuffer
+ setTimeout(ondrain, 0);
+};
+
+/**
+ * Called upon close
+ *
+ * @api private
+ */
+
+WS.prototype.onClose = function(){
+ Transport.prototype.onClose.call(this);
+};
+
+/**
+ * Closes socket.
+ *
+ * @api private
+ */
+
+WS.prototype.doClose = function(){
+ if (typeof this.ws !== 'undefined') {
+ this.ws.close();
+ }
+};
+
+/**
+ * Generates uri for connection.
+ *
+ * @api private
+ */
+
+WS.prototype.uri = function(){
+ var query = this.query || {};
+ var schema = this.secure ? 'wss' : 'ws';
+ var port = '';
+
+ // avoid port if default for schema
+ if (this.port && (('wss' == schema && this.port != 443)
+ || ('ws' == schema && this.port != 80))) {
+ port = ':' + this.port;
+ }
+
+ // append timestamp to URI
+ if (this.timestampRequests) {
+ query[this.timestampParam] = +new Date;
+ }
+
+ // communicate binary support capabilities
+ if (!this.supportsBinary) {
+ query.b64 = 1;
+ }
+
+ query = parseqs.encode(query);
+
+ // prepend ? to query
+ if (query.length) {
+ query = '?' + query;
+ }
+
+ return schema + '://' + this.hostname + port + this.path + query;
+};
+
+/**
+ * Feature detection for WebSocket.
+ *
+ * @return {Boolean} whether this transport is available.
+ * @api public
+ */
+
+WS.prototype.check = function(){
+ return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);
+};
+
+},{"../transport":14,"component-inherit":21,"debug":22,"engine.io-parser":25,"parseqs":35,"ws":37}],20:[function(_dereq_,module,exports){
+// browser shim for xmlhttprequest module
+var hasCORS = _dereq_('has-cors');
+
+module.exports = function(opts) {
+ var xdomain = opts.xdomain;
+
+ // scheme must be same when usign XDomainRequest
+ // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
+ var xscheme = opts.xscheme;
+
+ // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
+ // https://github.com/Automattic/engine.io-client/pull/217
+ var enablesXDR = opts.enablesXDR;
+
+ // XMLHttpRequest can be disabled on IE
+ try {
+ if ('undefined' != typeof XMLHttpRequest && (!xdomain || hasCORS)) {
+ return new XMLHttpRequest();
+ }
+ } catch (e) { }
+
+ // Use XDomainRequest for IE8 if enablesXDR is true
+ // because loading bar keeps flashing when using jsonp-polling
+ // https://github.com/yujiosaka/socke.io-ie8-loading-example
+ try {
+ if ('undefined' != typeof XDomainRequest && !xscheme && enablesXDR) {
+ return new XDomainRequest();
+ }
+ } catch (e) { }
+
+ if (!xdomain) {
+ try {
+ return new ActiveXObject('Microsoft.XMLHTTP');
+ } catch(e) { }
+ }
+}
+
+},{"has-cors":40}],21:[function(_dereq_,module,exports){
+
+module.exports = function(a, b){
+ var fn = function(){};
+ fn.prototype = b.prototype;
+ a.prototype = new fn;
+ a.prototype.constructor = a;
+};
+},{}],22:[function(_dereq_,module,exports){
+
+/**
+ * This is the web browser implementation of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = _dereq_('./debug');
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+ 'lightseagreen',
+ 'forestgreen',
+ 'goldenrod',
+ 'dodgerblue',
+ 'darkorchid',
+ 'crimson'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+function useColors() {
+ // is webkit? http://stackoverflow.com/a/16459606/376773
+ return ('WebkitAppearance' in document.documentElement.style) ||
+ // is firebug? http://stackoverflow.com/a/398120/376773
+ (window.console && (console.firebug || (console.exception && console.table))) ||
+ // is firefox >= v31?
+ // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+ (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31);
+}
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+exports.formatters.j = function(v) {
+ return JSON.stringify(v);
+};
+
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs() {
+ var args = arguments;
+ var useColors = this.useColors;
+
+ args[0] = (useColors ? '%c' : '')
+ + this.namespace
+ + (useColors ? ' %c' : ' ')
+ + args[0]
+ + (useColors ? '%c ' : ' ')
+ + '+' + exports.humanize(this.diff);
+
+ if (!useColors) return args;
+
+ var c = 'color: ' + this.color;
+ args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));
+
+ // the final "%c" is somewhat tricky, because there could be other
+ // arguments passed either before or after the %c, so we need to
+ // figure out the correct index to insert the CSS into
+ var index = 0;
+ var lastC = 0;
+ args[0].replace(/%[a-z%]/g, function(match) {
+ if ('%' === match) return;
+ index++;
+ if ('%c' === match) {
+ // we only are interested in the *last* %c
+ // (the user may have provided their own)
+ lastC = index;
+ }
+ });
+
+ args.splice(lastC, 0, c);
+ return args;
+}
+
+/**
+ * Invokes `console.log()` when available.
+ * No-op when `console.log` is not a "function".
+ *
+ * @api public
+ */
+
+function log() {
+ // This hackery is required for IE8,
+ // where the `console.log` function doesn't have 'apply'
+ return 'object' == typeof console
+ && 'function' == typeof console.log
+ && Function.prototype.apply.call(console.log, console, arguments);
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+function save(namespaces) {
+ try {
+ if (null == namespaces) {
+ localStorage.removeItem('debug');
+ } else {
+ localStorage.debug = namespaces;
+ }
+ } catch(e) {}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+ var r;
+ try {
+ r = localStorage.debug;
+ } catch(e) {}
+ return r;
+}
+
+/**
+ * Enable namespaces listed in `localStorage.debug` initially.
+ */
+
+exports.enable(load());
+
+},{"./debug":23}],23:[function(_dereq_,module,exports){
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = debug;
+exports.coerce = coerce;
+exports.disable = disable;
+exports.enable = enable;
+exports.enabled = enabled;
+exports.humanize = _dereq_('ms');
+
+/**
+ * The currently active debug mode names, and names to skip.
+ */
+
+exports.names = [];
+exports.skips = [];
+
+/**
+ * Map of special "%n" handling functions, for the debug "format" argument.
+ *
+ * Valid key names are a single, lowercased letter, i.e. "n".
+ */
+
+exports.formatters = {};
+
+/**
+ * Previously assigned color.
+ */
+
+var prevColor = 0;
+
+/**
+ * Previous log timestamp.
+ */
+
+var prevTime;
+
+/**
+ * Select a color.
+ *
+ * @return {Number}
+ * @api private
+ */
+
+function selectColor() {
+ return exports.colors[prevColor++ % exports.colors.length];
+}
+
+/**
+ * Create a debugger with the given `namespace`.
+ *
+ * @param {String} namespace
+ * @return {Function}
+ * @api public
+ */
+
+function debug(namespace) {
+
+ // define the `disabled` version
+ function disabled() {
+ }
+ disabled.enabled = false;
+
+ // define the `enabled` version
+ function enabled() {
+
+ var self = enabled;
+
+ // set `diff` timestamp
+ var curr = +new Date();
+ var ms = curr - (prevTime || curr);
+ self.diff = ms;
+ self.prev = prevTime;
+ self.curr = curr;
+ prevTime = curr;
+
+ // add the `color` if not set
+ if (null == self.useColors) self.useColors = exports.useColors();
+ if (null == self.color && self.useColors) self.color = selectColor();
+
+ var args = Array.prototype.slice.call(arguments);
+
+ args[0] = exports.coerce(args[0]);
+
+ if ('string' !== typeof args[0]) {
+ // anything else let's inspect with %o
+ args = ['%o'].concat(args);
+ }
+
+ // apply any `formatters` transformations
+ var index = 0;
+ args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {
+ // if we encounter an escaped % then don't increase the array index
+ if (match === '%') return match;
+ index++;
+ var formatter = exports.formatters[format];
+ if ('function' === typeof formatter) {
+ var val = args[index];
+ match = formatter.call(self, val);
+
+ // now we need to remove `args[index]` since it's inlined in the `format`
+ args.splice(index, 1);
+ index--;
+ }
+ return match;
+ });
+
+ if ('function' === typeof exports.formatArgs) {
+ args = exports.formatArgs.apply(self, args);
+ }
+ var logFn = enabled.log || exports.log || console.log.bind(console);
+ logFn.apply(self, args);
+ }
+ enabled.enabled = true;
+
+ var fn = exports.enabled(namespace) ? enabled : disabled;
+
+ fn.namespace = namespace;
+
+ return fn;
+}
+
+/**
+ * Enables a debug mode by namespaces. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} namespaces
+ * @api public
+ */
+
+function enable(namespaces) {
+ exports.save(namespaces);
+
+ var split = (namespaces || '').split(/[\s,]+/);
+ var len = split.length;
+
+ for (var i = 0; i < len; i++) {
+ if (!split[i]) continue; // ignore empty strings
+ namespaces = split[i].replace(/\*/g, '.*?');
+ if (namespaces[0] === '-') {
+ exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+ } else {
+ exports.names.push(new RegExp('^' + namespaces + '$'));
+ }
+ }
+}
+
+/**
+ * Disable debug output.
+ *
+ * @api public
+ */
+
+function disable() {
+ exports.enable('');
+}
+
+/**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+
+function enabled(name) {
+ var i, len;
+ for (i = 0, len = exports.skips.length; i < len; i++) {
+ if (exports.skips[i].test(name)) {
+ return false;
+ }
+ }
+ for (i = 0, len = exports.names.length; i < len; i++) {
+ if (exports.names[i].test(name)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+/**
+ * Coerce `val`.
+ *
+ * @param {Mixed} val
+ * @return {Mixed}
+ * @api private
+ */
+
+function coerce(val) {
+ if (val instanceof Error) return val.stack || val.message;
+ return val;
+}
+
+},{"ms":24}],24:[function(_dereq_,module,exports){
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ * - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} options
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options){
+ options = options || {};
+ if ('string' == typeof val) return parse(val);
+ return options.long
+ ? long(val)
+ : short(val);
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+ var match = /^((?:\d+)?\.?\d+) *(ms|seconds?|s|minutes?|m|hours?|h|days?|d|years?|y)?$/i.exec(str);
+ if (!match) return;
+ var n = parseFloat(match[1]);
+ var type = (match[2] || 'ms').toLowerCase();
+ switch (type) {
+ case 'years':
+ case 'year':
+ case 'y':
+ return n * y;
+ case 'days':
+ case 'day':
+ case 'd':
+ return n * d;
+ case 'hours':
+ case 'hour':
+ case 'h':
+ return n * h;
+ case 'minutes':
+ case 'minute':
+ case 'm':
+ return n * m;
+ case 'seconds':
+ case 'second':
+ case 's':
+ return n * s;
+ case 'ms':
+ return n;
+ }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function short(ms) {
+ if (ms >= d) return Math.round(ms / d) + 'd';
+ if (ms >= h) return Math.round(ms / h) + 'h';
+ if (ms >= m) return Math.round(ms / m) + 'm';
+ if (ms >= s) return Math.round(ms / s) + 's';
+ return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function long(ms) {
+ return plural(ms, d, 'day')
+ || plural(ms, h, 'hour')
+ || plural(ms, m, 'minute')
+ || plural(ms, s, 'second')
+ || ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, n, name) {
+ if (ms < n) return;
+ if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name;
+ return Math.ceil(ms / n) + ' ' + name + 's';
+}
+
+},{}],25:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Module dependencies.
+ */
+
+var keys = _dereq_('./keys');
+var hasBinary = _dereq_('has-binary');
+var sliceBuffer = _dereq_('arraybuffer.slice');
+var base64encoder = _dereq_('base64-arraybuffer');
+var after = _dereq_('after');
+var utf8 = _dereq_('utf8');
+
+/**
+ * Check if we are running an android browser. That requires us to use
+ * ArrayBuffer with polling transports...
+ *
+ * http://ghinda.net/jpeg-blob-ajax-android/
+ */
+
+var isAndroid = navigator.userAgent.match(/Android/i);
+
+/**
+ * Check if we are running in PhantomJS.
+ * Uploading a Blob with PhantomJS does not work correctly, as reported here:
+ * https://github.com/ariya/phantomjs/issues/11395
+ * @type boolean
+ */
+var isPhantomJS = /PhantomJS/i.test(navigator.userAgent);
+
+/**
+ * When true, avoids using Blobs to encode payloads.
+ * @type boolean
+ */
+var dontSendBlobs = isAndroid || isPhantomJS;
+
+/**
+ * Current protocol version.
+ */
+
+exports.protocol = 3;
+
+/**
+ * Packet types.
+ */
+
+var packets = exports.packets = {
+ open: 0 // non-ws
+ , close: 1 // non-ws
+ , ping: 2
+ , pong: 3
+ , message: 4
+ , upgrade: 5
+ , noop: 6
+};
+
+var packetslist = keys(packets);
+
+/**
+ * Premade error packet.
+ */
+
+var err = { type: 'error', data: 'parser error' };
+
+/**
+ * Create a blob api even for blob builder when vendor prefixes exist
+ */
+
+var Blob = _dereq_('blob');
+
+/**
+ * Encodes a packet.
+ *
+ * <packet type id> [ <data> ]
+ *
+ * Example:
+ *
+ * 5hello world
+ * 3
+ * 4
+ *
+ * Binary is encoded in an identical principle
+ *
+ * @api private
+ */
+
+exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+ if ('function' == typeof supportsBinary) {
+ callback = supportsBinary;
+ supportsBinary = false;
+ }
+
+ if ('function' == typeof utf8encode) {
+ callback = utf8encode;
+ utf8encode = null;
+ }
+
+ var data = (packet.data === undefined)
+ ? undefined
+ : packet.data.buffer || packet.data;
+
+ if (global.ArrayBuffer && data instanceof ArrayBuffer) {
+ return encodeArrayBuffer(packet, supportsBinary, callback);
+ } else if (Blob && data instanceof global.Blob) {
+ return encodeBlob(packet, supportsBinary, callback);
+ }
+
+ // might be an object with { base64: true, data: dataAsBase64String }
+ if (data && data.base64) {
+ return encodeBase64Object(packet, callback);
+ }
+
+ // Sending data as a utf-8 string
+ var encoded = packets[packet.type];
+
+ // data fragment is optional
+ if (undefined !== packet.data) {
+ encoded += utf8encode ? utf8.encode(String(packet.data)) : String(packet.data);
+ }
+
+ return callback('' + encoded);
+
+};
+
+function encodeBase64Object(packet, callback) {
+ // packet data is an object { base64: true, data: dataAsBase64String }
+ var message = 'b' + exports.packets[packet.type] + packet.data.data;
+ return callback(message);
+}
+
+/**
+ * Encode packet helpers for binary types
+ */
+
+function encodeArrayBuffer(packet, supportsBinary, callback) {
+ if (!supportsBinary) {
+ return exports.encodeBase64Packet(packet, callback);
+ }
+
+ var data = packet.data;
+ var contentArray = new Uint8Array(data);
+ var resultBuffer = new Uint8Array(1 + data.byteLength);
+
+ resultBuffer[0] = packets[packet.type];
+ for (var i = 0; i < contentArray.length; i++) {
+ resultBuffer[i+1] = contentArray[i];
+ }
+
+ return callback(resultBuffer.buffer);
+}
+
+function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
+ if (!supportsBinary) {
+ return exports.encodeBase64Packet(packet, callback);
+ }
+
+ var fr = new FileReader();
+ fr.onload = function() {
+ packet.data = fr.result;
+ exports.encodePacket(packet, supportsBinary, true, callback);
+ };
+ return fr.readAsArrayBuffer(packet.data);
+}
+
+function encodeBlob(packet, supportsBinary, callback) {
+ if (!supportsBinary) {
+ return exports.encodeBase64Packet(packet, callback);
+ }
+
+ if (dontSendBlobs) {
+ return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
+ }
+
+ var length = new Uint8Array(1);
+ length[0] = packets[packet.type];
+ var blob = new Blob([length.buffer, packet.data]);
+
+ return callback(blob);
+}
+
+/**
+ * Encodes a packet with binary data in a base64 string
+ *
+ * @param {Object} packet, has `type` and `data`
+ * @return {String} base64 encoded message
+ */
+
+exports.encodeBase64Packet = function(packet, callback) {
+ var message = 'b' + exports.packets[packet.type];
+ if (Blob && packet.data instanceof Blob) {
+ var fr = new FileReader();
+ fr.onload = function() {
+ var b64 = fr.result.split(',')[1];
+ callback(message + b64);
+ };
+ return fr.readAsDataURL(packet.data);
+ }
+
+ var b64data;
+ try {
+ b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
+ } catch (e) {
+ // iPhone Safari doesn't let you apply with typed arrays
+ var typed = new Uint8Array(packet.data);
+ var basic = new Array(typed.length);
+ for (var i = 0; i < typed.length; i++) {
+ basic[i] = typed[i];
+ }
+ b64data = String.fromCharCode.apply(null, basic);
+ }
+ message += global.btoa(b64data);
+ return callback(message);
+};
+
+/**
+ * Decodes a packet. Changes format to Blob if requested.
+ *
+ * @return {Object} with `type` and `data` (if any)
+ * @api private
+ */
+
+exports.decodePacket = function (data, binaryType, utf8decode) {
+ // String data
+ if (typeof data == 'string' || data === undefined) {
+ if (data.charAt(0) == 'b') {
+ return exports.decodeBase64Packet(data.substr(1), binaryType);
+ }
+
+ if (utf8decode) {
+ try {
+ data = utf8.decode(data);
+ } catch (e) {
+ return err;
+ }
+ }
+ var type = data.charAt(0);
+
+ if (Number(type) != type || !packetslist[type]) {
+ return err;
+ }
+
+ if (data.length > 1) {
+ return { type: packetslist[type], data: data.substring(1) };
+ } else {
+ return { type: packetslist[type] };
+ }
+ }
+
+ var asArray = new Uint8Array(data);
+ var type = asArray[0];
+ var rest = sliceBuffer(data, 1);
+ if (Blob && binaryType === 'blob') {
+ rest = new Blob([rest]);
+ }
+ return { type: packetslist[type], data: rest };
+};
+
+/**
+ * Decodes a packet encoded in a base64 string
+ *
+ * @param {String} base64 encoded message
+ * @return {Object} with `type` and `data` (if any)
+ */
+
+exports.decodeBase64Packet = function(msg, binaryType) {
+ var type = packetslist[msg.charAt(0)];
+ if (!global.ArrayBuffer) {
+ return { type: type, data: { base64: true, data: msg.substr(1) } };
+ }
+
+ var data = base64encoder.decode(msg.substr(1));
+
+ if (binaryType === 'blob' && Blob) {
+ data = new Blob([data]);
+ }
+
+ return { type: type, data: data };
+};
+
+/**
+ * Encodes multiple messages (payload).
+ *
+ * <length>:data
+ *
+ * Example:
+ *
+ * 11:hello world2:hi
+ *
+ * If any contents are binary, they will be encoded as base64 strings. Base64
+ * encoded strings are marked with a b before the length specifier
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+exports.encodePayload = function (packets, supportsBinary, callback) {
+ if (typeof supportsBinary == 'function') {
+ callback = supportsBinary;
+ supportsBinary = null;
+ }
+
+ var isBinary = hasBinary(packets);
+
+ if (supportsBinary && isBinary) {
+ if (Blob && !dontSendBlobs) {
+ return exports.encodePayloadAsBlob(packets, callback);
+ }
+
+ return exports.encodePayloadAsArrayBuffer(packets, callback);
+ }
+
+ if (!packets.length) {
+ return callback('0:');
+ }
+
+ function setLengthHeader(message) {
+ return message.length + ':' + message;
+ }
+
+ function encodeOne(packet, doneCallback) {
+ exports.encodePacket(packet, !isBinary ? false : supportsBinary, true, function(message) {
+ doneCallback(null, setLengthHeader(message));
+ });
+ }
+
+ map(packets, encodeOne, function(err, results) {
+ return callback(results.join(''));
+ });
+};
+
+/**
+ * Async array map using after
+ */
+
+function map(ary, each, done) {
+ var result = new Array(ary.length);
+ var next = after(ary.length, done);
+
+ var eachWithIndex = function(i, el, cb) {
+ each(el, function(error, msg) {
+ result[i] = msg;
+ cb(error, result);
+ });
+ };
+
+ for (var i = 0; i < ary.length; i++) {
+ eachWithIndex(i, ary[i], next);
+ }
+}
+
+/*
+ * Decodes data when a payload is maybe expected. Possible binary contents are
+ * decoded from their base64 representation
+ *
+ * @param {String} data, callback method
+ * @api public
+ */
+
+exports.decodePayload = function (data, binaryType, callback) {
+ if (typeof data != 'string') {
+ return exports.decodePayloadAsBinary(data, binaryType, callback);
+ }
+
+ if (typeof binaryType === 'function') {
+ callback = binaryType;
+ binaryType = null;
+ }
+
+ var packet;
+ if (data == '') {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ var length = ''
+ , n, msg;
+
+ for (var i = 0, l = data.length; i < l; i++) {
+ var chr = data.charAt(i);
+
+ if (':' != chr) {
+ length += chr;
+ } else {
+ if ('' == length || (length != (n = Number(length)))) {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ msg = data.substr(i + 1, n);
+
+ if (length != msg.length) {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ if (msg.length) {
+ packet = exports.decodePacket(msg, binaryType, true);
+
+ if (err.type == packet.type && err.data == packet.data) {
+ // parser error in individual packet - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ var ret = callback(packet, i + n, l);
+ if (false === ret) return;
+ }
+
+ // advance cursor
+ i += n;
+ length = '';
+ }
+ }
+
+ if (length != '') {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+};
+
+/**
+ * Encodes multiple messages (payload) as binary.
+ *
+ * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+ * 255><data>
+ *
+ * Example:
+ * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+ *
+ * @param {Array} packets
+ * @return {ArrayBuffer} encoded payload
+ * @api private
+ */
+
+exports.encodePayloadAsArrayBuffer = function(packets, callback) {
+ if (!packets.length) {
+ return callback(new ArrayBuffer(0));
+ }
+
+ function encodeOne(packet, doneCallback) {
+ exports.encodePacket(packet, true, true, function(data) {
+ return doneCallback(null, data);
+ });
+ }
+
+ map(packets, encodeOne, function(err, encodedPackets) {
+ var totalLength = encodedPackets.reduce(function(acc, p) {
+ var len;
+ if (typeof p === 'string'){
+ len = p.length;
+ } else {
+ len = p.byteLength;
+ }
+ return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
+ }, 0);
+
+ var resultArray = new Uint8Array(totalLength);
+
+ var bufferIndex = 0;
+ encodedPackets.forEach(function(p) {
+ var isString = typeof p === 'string';
+ var ab = p;
+ if (isString) {
+ var view = new Uint8Array(p.length);
+ for (var i = 0; i < p.length; i++) {
+ view[i] = p.charCodeAt(i);
+ }
+ ab = view.buffer;
+ }
+
+ if (isString) { // not true binary
+ resultArray[bufferIndex++] = 0;
+ } else { // true binary
+ resultArray[bufferIndex++] = 1;
+ }
+
+ var lenStr = ab.byteLength.toString();
+ for (var i = 0; i < lenStr.length; i++) {
+ resultArray[bufferIndex++] = parseInt(lenStr[i]);
+ }
+ resultArray[bufferIndex++] = 255;
+
+ var view = new Uint8Array(ab);
+ for (var i = 0; i < view.length; i++) {
+ resultArray[bufferIndex++] = view[i];
+ }
+ });
+
+ return callback(resultArray.buffer);
+ });
+};
+
+/**
+ * Encode as Blob
+ */
+
+exports.encodePayloadAsBlob = function(packets, callback) {
+ function encodeOne(packet, doneCallback) {
+ exports.encodePacket(packet, true, true, function(encoded) {
+ var binaryIdentifier = new Uint8Array(1);
+ binaryIdentifier[0] = 1;
+ if (typeof encoded === 'string') {
+ var view = new Uint8Array(encoded.length);
+ for (var i = 0; i < encoded.length; i++) {
+ view[i] = encoded.charCodeAt(i);
+ }
+ encoded = view.buffer;
+ binaryIdentifier[0] = 0;
+ }
+
+ var len = (encoded instanceof ArrayBuffer)
+ ? encoded.byteLength
+ : encoded.size;
+
+ var lenStr = len.toString();
+ var lengthAry = new Uint8Array(lenStr.length + 1);
+ for (var i = 0; i < lenStr.length; i++) {
+ lengthAry[i] = parseInt(lenStr[i]);
+ }
+ lengthAry[lenStr.length] = 255;
+
+ if (Blob) {
+ var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
+ doneCallback(null, blob);
+ }
+ });
+ }
+
+ map(packets, encodeOne, function(err, results) {
+ return callback(new Blob(results));
+ });
+};
+
+/*
+ * Decodes data when a payload is maybe expected. Strings are decoded by
+ * interpreting each byte as a key code for entries marked to start with 0. See
+ * description of encodePayloadAsBinary
+ *
+ * @param {ArrayBuffer} data, callback method
+ * @api public
+ */
+
+exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+ if (typeof binaryType === 'function') {
+ callback = binaryType;
+ binaryType = null;
+ }
+
+ var bufferTail = data;
+ var buffers = [];
+
+ var numberTooLong = false;
+ while (bufferTail.byteLength > 0) {
+ var tailArray = new Uint8Array(bufferTail);
+ var isString = tailArray[0] === 0;
+ var msgLength = '';
+
+ for (var i = 1; ; i++) {
+ if (tailArray[i] == 255) break;
+
+ if (msgLength.length > 310) {
+ numberTooLong = true;
+ break;
+ }
+
+ msgLength += tailArray[i];
+ }
+
+ if(numberTooLong) return callback(err, 0, 1);
+
+ bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
+ msgLength = parseInt(msgLength);
+
+ var msg = sliceBuffer(bufferTail, 0, msgLength);
+ if (isString) {
+ try {
+ msg = String.fromCharCode.apply(null, new Uint8Array(msg));
+ } catch (e) {
+ // iPhone Safari doesn't let you apply to typed arrays
+ var typed = new Uint8Array(msg);
+ msg = '';
+ for (var i = 0; i < typed.length; i++) {
+ msg += String.fromCharCode(typed[i]);
+ }
+ }
+ }
+
+ buffers.push(msg);
+ bufferTail = sliceBuffer(bufferTail, msgLength);
+ }
+
+ var total = buffers.length;
+ buffers.forEach(function(buffer, i) {
+ callback(exports.decodePacket(buffer, binaryType, true), i, total);
+ });
+};
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./keys":26,"after":27,"arraybuffer.slice":28,"base64-arraybuffer":29,"blob":30,"has-binary":31,"utf8":33}],26:[function(_dereq_,module,exports){
+
+/**
+ * Gets the keys for an object.
+ *
+ * @return {Array} keys
+ * @api private
+ */
+
+module.exports = Object.keys || function keys (obj){
+ var arr = [];
+ var has = Object.prototype.hasOwnProperty;
+
+ for (var i in obj) {
+ if (has.call(obj, i)) {
+ arr.push(i);
+ }
+ }
+ return arr;
+};
+
+},{}],27:[function(_dereq_,module,exports){
+module.exports = after
+
+function after(count, callback, err_cb) {
+ var bail = false
+ err_cb = err_cb || noop
+ proxy.count = count
+
+ return (count === 0) ? callback() : proxy
+
+ function proxy(err, result) {
+ if (proxy.count <= 0) {
+ throw new Error('after called too many times')
+ }
+ --proxy.count
+
+ // after first error, rest are passed to err_cb
+ if (err) {
+ bail = true
+ callback(err)
+ // future error callbacks will go to error handler
+ callback = err_cb
+ } else if (proxy.count === 0 && !bail) {
+ callback(null, result)
+ }
+ }
+}
+
+function noop() {}
+
+},{}],28:[function(_dereq_,module,exports){
+/**
+ * An abstraction for slicing an arraybuffer even when
+ * ArrayBuffer.prototype.slice is not supported
+ *
+ * @api public
+ */
+
+module.exports = function(arraybuffer, start, end) {
+ var bytes = arraybuffer.byteLength;
+ start = start || 0;
+ end = end || bytes;
+
+ if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
+
+ if (start < 0) { start += bytes; }
+ if (end < 0) { end += bytes; }
+ if (end > bytes) { end = bytes; }
+
+ if (start >= bytes || start >= end || bytes === 0) {
+ return new ArrayBuffer(0);
+ }
+
+ var abv = new Uint8Array(arraybuffer);
+ var result = new Uint8Array(end - start);
+ for (var i = start, ii = 0; i < end; i++, ii++) {
+ result[ii] = abv[i];
+ }
+ return result.buffer;
+};
+
+},{}],29:[function(_dereq_,module,exports){
+/*
+ * base64-arraybuffer
+ * https://github.com/niklasvh/base64-arraybuffer
+ *
+ * Copyright (c) 2012 Niklas von Hertzen
+ * Licensed under the MIT license.
+ */
+(function(chars){
+ "use strict";
+
+ exports.encode = function(arraybuffer) {
+ var bytes = new Uint8Array(arraybuffer),
+ i, len = bytes.length, base64 = "";
+
+ for (i = 0; i < len; i+=3) {
+ base64 += chars[bytes[i] >> 2];
+ base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
+ base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
+ base64 += chars[bytes[i + 2] & 63];
+ }
+
+ if ((len % 3) === 2) {
+ base64 = base64.substring(0, base64.length - 1) + "=";
+ } else if (len % 3 === 1) {
+ base64 = base64.substring(0, base64.length - 2) + "==";
+ }
+
+ return base64;
+ };
+
+ exports.decode = function(base64) {
+ var bufferLength = base64.length * 0.75,
+ len = base64.length, i, p = 0,
+ encoded1, encoded2, encoded3, encoded4;
+
+ if (base64[base64.length - 1] === "=") {
+ bufferLength--;
+ if (base64[base64.length - 2] === "=") {
+ bufferLength--;
+ }
+ }
+
+ var arraybuffer = new ArrayBuffer(bufferLength),
+ bytes = new Uint8Array(arraybuffer);
+
+ for (i = 0; i < len; i+=4) {
+ encoded1 = chars.indexOf(base64[i]);
+ encoded2 = chars.indexOf(base64[i+1]);
+ encoded3 = chars.indexOf(base64[i+2]);
+ encoded4 = chars.indexOf(base64[i+3]);
+
+ bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
+ bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
+ bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
+ }
+
+ return arraybuffer;
+ };
+})("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");
+
+},{}],30:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Create a blob builder even when vendor prefixes exist
+ */
+
+var BlobBuilder = global.BlobBuilder
+ || global.WebKitBlobBuilder
+ || global.MSBlobBuilder
+ || global.MozBlobBuilder;
+
+/**
+ * Check if Blob constructor is supported
+ */
+
+var blobSupported = (function() {
+ try {
+ var b = new Blob(['hi']);
+ return b.size == 2;
+ } catch(e) {
+ return false;
+ }
+})();
+
+/**
+ * Check if BlobBuilder is supported
+ */
+
+var blobBuilderSupported = BlobBuilder
+ && BlobBuilder.prototype.append
+ && BlobBuilder.prototype.getBlob;
+
+function BlobBuilderConstructor(ary, options) {
+ options = options || {};
+
+ var bb = new BlobBuilder();
+ for (var i = 0; i < ary.length; i++) {
+ bb.append(ary[i]);
+ }
+ return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
+};
+
+module.exports = (function() {
+ if (blobSupported) {
+ return global.Blob;
+ } else if (blobBuilderSupported) {
+ return BlobBuilderConstructor;
+ } else {
+ return undefined;
+ }
+})();
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],31:[function(_dereq_,module,exports){
+(function (global){
+
+/*
+ * Module requirements.
+ */
+
+var isArray = _dereq_('isarray');
+
+/**
+ * Module exports.
+ */
+
+module.exports = hasBinary;
+
+/**
+ * Checks for binary data.
+ *
+ * Right now only Buffer and ArrayBuffer are supported..
+ *
+ * @param {Object} anything
+ * @api public
+ */
+
+function hasBinary(data) {
+
+ function _hasBinary(obj) {
+ if (!obj) return false;
+
+ if ( (global.Buffer && global.Buffer.isBuffer(obj)) ||
+ (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
+ (global.Blob && obj instanceof Blob) ||
+ (global.File && obj instanceof File)
+ ) {
+ return true;
+ }
+
+ if (isArray(obj)) {
+ for (var i = 0; i < obj.length; i++) {
+ if (_hasBinary(obj[i])) {
+ return true;
+ }
+ }
+ } else if (obj && 'object' == typeof obj) {
+ if (obj.toJSON) {
+ obj = obj.toJSON();
+ }
+
+ for (var key in obj) {
+ if (obj.hasOwnProperty(key) && _hasBinary(obj[key])) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ return _hasBinary(data);
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"isarray":32}],32:[function(_dereq_,module,exports){
+module.exports = Array.isArray || function (arr) {
+ return Object.prototype.toString.call(arr) == '[object Array]';
+};
+
+},{}],33:[function(_dereq_,module,exports){
+(function (global){
+/*! http://mths.be/utf8js v2.0.0 by @mathias */
+;(function(root) {
+
+ // Detect free variables `exports`
+ var freeExports = typeof exports == 'object' && exports;
+
+ // Detect free variable `module`
+ var freeModule = typeof module == 'object' && module &&
+ module.exports == freeExports && module;
+
+ // Detect free variable `global`, from Node.js or Browserified code,
+ // and use it as `root`
+ var freeGlobal = typeof global == 'object' && global;
+ if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+ root = freeGlobal;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ var stringFromCharCode = String.fromCharCode;
+
+ // Taken from http://mths.be/punycode
+ function ucs2decode(string) {
+ var output = [];
+ var counter = 0;
+ var length = string.length;
+ var value;
+ var extra;
+ while (counter < length) {
+ value = string.charCodeAt(counter++);
+ if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+ // high surrogate, and there is a next character
+ extra = string.charCodeAt(counter++);
+ if ((extra & 0xFC00) == 0xDC00) { // low surrogate
+ output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+ } else {
+ // unmatched surrogate; only append this code unit, in case the next
+ // code unit is the high surrogate of a surrogate pair
+ output.push(value);
+ counter--;
+ }
+ } else {
+ output.push(value);
+ }
+ }
+ return output;
+ }
+
+ // Taken from http://mths.be/punycode
+ function ucs2encode(array) {
+ var length = array.length;
+ var index = -1;
+ var value;
+ var output = '';
+ while (++index < length) {
+ value = array[index];
+ if (value > 0xFFFF) {
+ value -= 0x10000;
+ output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
+ value = 0xDC00 | value & 0x3FF;
+ }
+ output += stringFromCharCode(value);
+ }
+ return output;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ function createByte(codePoint, shift) {
+ return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
+ }
+
+ function encodeCodePoint(codePoint) {
+ if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
+ return stringFromCharCode(codePoint);
+ }
+ var symbol = '';
+ if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
+ symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
+ }
+ else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
+ symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
+ symbol += createByte(codePoint, 6);
+ }
+ else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
+ symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
+ symbol += createByte(codePoint, 12);
+ symbol += createByte(codePoint, 6);
+ }
+ symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
+ return symbol;
+ }
+
+ function utf8encode(string) {
+ var codePoints = ucs2decode(string);
+
+ // console.log(JSON.stringify(codePoints.map(function(x) {
+ // return 'U+' + x.toString(16).toUpperCase();
+ // })));
+
+ var length = codePoints.length;
+ var index = -1;
+ var codePoint;
+ var byteString = '';
+ while (++index < length) {
+ codePoint = codePoints[index];
+ byteString += encodeCodePoint(codePoint);
+ }
+ return byteString;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ function readContinuationByte() {
+ if (byteIndex >= byteCount) {
+ throw Error('Invalid byte index');
+ }
+
+ var continuationByte = byteArray[byteIndex] & 0xFF;
+ byteIndex++;
+
+ if ((continuationByte & 0xC0) == 0x80) {
+ return continuationByte & 0x3F;
+ }
+
+ // If we end up here, it’s not a continuation byte
+ throw Error('Invalid continuation byte');
+ }
+
+ function decodeSymbol() {
+ var byte1;
+ var byte2;
+ var byte3;
+ var byte4;
+ var codePoint;
+
+ if (byteIndex > byteCount) {
+ throw Error('Invalid byte index');
+ }
+
+ if (byteIndex == byteCount) {
+ return false;
+ }
+
+ // Read first byte
+ byte1 = byteArray[byteIndex] & 0xFF;
+ byteIndex++;
+
+ // 1-byte sequence (no continuation bytes)
+ if ((byte1 & 0x80) == 0) {
+ return byte1;
+ }
+
+ // 2-byte sequence
+ if ((byte1 & 0xE0) == 0xC0) {
+ var byte2 = readContinuationByte();
+ codePoint = ((byte1 & 0x1F) << 6) | byte2;
+ if (codePoint >= 0x80) {
+ return codePoint;
+ } else {
+ throw Error('Invalid continuation byte');
+ }
+ }
+
+ // 3-byte sequence (may include unpaired surrogates)
+ if ((byte1 & 0xF0) == 0xE0) {
+ byte2 = readContinuationByte();
+ byte3 = readContinuationByte();
+ codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
+ if (codePoint >= 0x0800) {
+ return codePoint;
+ } else {
+ throw Error('Invalid continuation byte');
+ }
+ }
+
+ // 4-byte sequence
+ if ((byte1 & 0xF8) == 0xF0) {
+ byte2 = readContinuationByte();
+ byte3 = readContinuationByte();
+ byte4 = readContinuationByte();
+ codePoint = ((byte1 & 0x0F) << 0x12) | (byte2 << 0x0C) |
+ (byte3 << 0x06) | byte4;
+ if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
+ return codePoint;
+ }
+ }
+
+ throw Error('Invalid UTF-8 detected');
+ }
+
+ var byteArray;
+ var byteCount;
+ var byteIndex;
+ function utf8decode(byteString) {
+ byteArray = ucs2decode(byteString);
+ byteCount = byteArray.length;
+ byteIndex = 0;
+ var codePoints = [];
+ var tmp;
+ while ((tmp = decodeSymbol()) !== false) {
+ codePoints.push(tmp);
+ }
+ return ucs2encode(codePoints);
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ var utf8 = {
+ 'version': '2.0.0',
+ 'encode': utf8encode,
+ 'decode': utf8decode
+ };
+
+ // Some AMD build optimizers, like r.js, check for specific condition patterns
+ // like the following:
+ if (
+ typeof define == 'function' &&
+ typeof define.amd == 'object' &&
+ define.amd
+ ) {
+ define(function() {
+ return utf8;
+ });
+ } else if (freeExports && !freeExports.nodeType) {
+ if (freeModule) { // in Node.js or RingoJS v0.8.0+
+ freeModule.exports = utf8;
+ } else { // in Narwhal or RingoJS v0.7.0-
+ var object = {};
+ var hasOwnProperty = object.hasOwnProperty;
+ for (var key in utf8) {
+ hasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]);
+ }
+ }
+ } else { // in Rhino or a web browser
+ root.utf8 = utf8;
+ }
+
+}(this));
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],34:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * JSON parse.
+ *
+ * @see Based on jQuery#parseJSON (MIT) and JSON2
+ * @api private
+ */
+
+var rvalidchars = /^[\],:{}\s]*$/;
+var rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g;
+var rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g;
+var rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g;
+var rtrimLeft = /^\s+/;
+var rtrimRight = /\s+$/;
+
+module.exports = function parsejson(data) {
+ if ('string' != typeof data || !data) {
+ return null;
+ }
+
+ data = data.replace(rtrimLeft, '').replace(rtrimRight, '');
+
+ // Attempt to parse using the native JSON parser first
+ if (global.JSON && JSON.parse) {
+ return JSON.parse(data);
+ }
+
+ if (rvalidchars.test(data.replace(rvalidescape, '@')
+ .replace(rvalidtokens, ']')
+ .replace(rvalidbraces, ''))) {
+ return (new Function('return ' + data))();
+ }
+};
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],35:[function(_dereq_,module,exports){
+/**
+ * Compiles a querystring
+ * Returns string representation of the object
+ *
+ * @param {Object}
+ * @api private
+ */
+
+exports.encode = function (obj) {
+ var str = '';
+
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) {
+ if (str.length) str += '&';
+ str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
+ }
+ }
+
+ return str;
+};
+
+/**
+ * Parses a simple querystring into an object
+ *
+ * @param {String} qs
+ * @api private
+ */
+
+exports.decode = function(qs){
+ var qry = {};
+ var pairs = qs.split('&');
+ for (var i = 0, l = pairs.length; i < l; i++) {
+ var pair = pairs[i].split('=');
+ qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
+ }
+ return qry;
+};
+
+},{}],36:[function(_dereq_,module,exports){
+/**
+ * Parses an URI
+ *
+ * @author Steven Levithan <stevenlevithan.com> (MIT license)
+ * @api private
+ */
+
+var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+
+var parts = [
+ 'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
+];
+
+module.exports = function parseuri(str) {
+ var src = str,
+ b = str.indexOf('['),
+ e = str.indexOf(']');
+
+ if (b != -1 && e != -1) {
+ str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
+ }
+
+ var m = re.exec(str || ''),
+ uri = {},
+ i = 14;
+
+ while (i--) {
+ uri[parts[i]] = m[i] || '';
+ }
+
+ if (b != -1 && e != -1) {
+ uri.source = src;
+ uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
+ uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
+ uri.ipv6uri = true;
+ }
+
+ return uri;
+};
+
+},{}],37:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var global = (function() { return this; })();
+
+/**
+ * WebSocket constructor.
+ */
+
+var WebSocket = global.WebSocket || global.MozWebSocket;
+
+/**
+ * Module exports.
+ */
+
+module.exports = WebSocket ? ws : null;
+
+/**
+ * WebSocket constructor.
+ *
+ * The third `opts` options object gets ignored in web browsers, since it's
+ * non-standard, and throws a TypeError if passed to the constructor.
+ * See: https://github.com/einaros/ws/issues/227
+ *
+ * @param {String} uri
+ * @param {Array} protocols (optional)
+ * @param {Object) opts (optional)
+ * @api public
+ */
+
+function ws(uri, protocols, opts) {
+ var instance;
+ if (protocols) {
+ instance = new WebSocket(uri, protocols);
+ } else {
+ instance = new WebSocket(uri);
+ }
+ return instance;
+}
+
+if (WebSocket) ws.prototype = WebSocket.prototype;
+
+},{}],38:[function(_dereq_,module,exports){
+(function (global){
+
+/*
+ * Module requirements.
+ */
+
+var isArray = _dereq_('isarray');
+
+/**
+ * Module exports.
+ */
+
+module.exports = hasBinary;
+
+/**
+ * Checks for binary data.
+ *
+ * Right now only Buffer and ArrayBuffer are supported..
+ *
+ * @param {Object} anything
+ * @api public
+ */
+
+function hasBinary(data) {
+
+ function _hasBinary(obj) {
+ if (!obj) return false;
+
+ if ( (global.Buffer && global.Buffer.isBuffer(obj)) ||
+ (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
+ (global.Blob && obj instanceof Blob) ||
+ (global.File && obj instanceof File)
+ ) {
+ return true;
+ }
+
+ if (isArray(obj)) {
+ for (var i = 0; i < obj.length; i++) {
+ if (_hasBinary(obj[i])) {
+ return true;
+ }
+ }
+ } else if (obj && 'object' == typeof obj) {
+ if (obj.toJSON) {
+ obj = obj.toJSON();
+ }
+
+ for (var key in obj) {
+ if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ return _hasBinary(data);
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"isarray":39}],39:[function(_dereq_,module,exports){
+module.exports=_dereq_(32)
+},{}],40:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var global = _dereq_('global');
+
+/**
+ * Module exports.
+ *
+ * Logic borrowed from Modernizr:
+ *
+ * - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
+ */
+
+try {
+ module.exports = 'XMLHttpRequest' in global &&
+ 'withCredentials' in new global.XMLHttpRequest();
+} catch (err) {
+ // if XMLHttp support is disabled in IE then it will throw
+ // when trying to create
+ module.exports = false;
+}
+
+},{"global":41}],41:[function(_dereq_,module,exports){
+
+/**
+ * Returns `this`. Execute this without a "context" (i.e. without it being
+ * attached to an object of the left-hand side), and `this` points to the
+ * "global" scope of the current JS execution.
+ */
+
+module.exports = (function () { return this; })();
+
+},{}],42:[function(_dereq_,module,exports){
+
+var indexOf = [].indexOf;
+
+module.exports = function(arr, obj){
+ if (indexOf) return arr.indexOf(obj);
+ for (var i = 0; i < arr.length; ++i) {
+ if (arr[i] === obj) return i;
+ }
+ return -1;
+};
+},{}],43:[function(_dereq_,module,exports){
+
+/**
+ * HOP ref.
+ */
+
+var has = Object.prototype.hasOwnProperty;
+
+/**
+ * Return own keys in `obj`.
+ *
+ * @param {Object} obj
+ * @return {Array}
+ * @api public
+ */
+
+exports.keys = Object.keys || function(obj){
+ var keys = [];
+ for (var key in obj) {
+ if (has.call(obj, key)) {
+ keys.push(key);
+ }
+ }
+ return keys;
+};
+
+/**
+ * Return own values in `obj`.
+ *
+ * @param {Object} obj
+ * @return {Array}
+ * @api public
+ */
+
+exports.values = function(obj){
+ var vals = [];
+ for (var key in obj) {
+ if (has.call(obj, key)) {
+ vals.push(obj[key]);
+ }
+ }
+ return vals;
+};
+
+/**
+ * Merge `b` into `a`.
+ *
+ * @param {Object} a
+ * @param {Object} b
+ * @return {Object} a
+ * @api public
+ */
+
+exports.merge = function(a, b){
+ for (var key in b) {
+ if (has.call(b, key)) {
+ a[key] = b[key];
+ }
+ }
+ return a;
+};
+
+/**
+ * Return length of `obj`.
+ *
+ * @param {Object} obj
+ * @return {Number}
+ * @api public
+ */
+
+exports.length = function(obj){
+ return exports.keys(obj).length;
+};
+
+/**
+ * Check if `obj` is empty.
+ *
+ * @param {Object} obj
+ * @return {Boolean}
+ * @api public
+ */
+
+exports.isEmpty = function(obj){
+ return 0 == exports.length(obj);
+};
+},{}],44:[function(_dereq_,module,exports){
+/**
+ * Parses an URI
+ *
+ * @author Steven Levithan <stevenlevithan.com> (MIT license)
+ * @api private
+ */
+
+var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+
+var parts = [
+ 'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host'
+ , 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
+];
+
+module.exports = function parseuri(str) {
+ var m = re.exec(str || '')
+ , uri = {}
+ , i = 14;
+
+ while (i--) {
+ uri[parts[i]] = m[i] || '';
+ }
+
+ return uri;
+};
+
+},{}],45:[function(_dereq_,module,exports){
+(function (global){
+/*global Blob,File*/
+
+/**
+ * Module requirements
+ */
+
+var isArray = _dereq_('isarray');
+var isBuf = _dereq_('./is-buffer');
+
+/**
+ * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
+ * Anything with blobs or files should be fed through removeBlobs before coming
+ * here.
+ *
+ * @param {Object} packet - socket.io event packet
+ * @return {Object} with deconstructed packet and list of buffers
+ * @api public
+ */
+
+exports.deconstructPacket = function(packet){
+ var buffers = [];
+ var packetData = packet.data;
+
+ function _deconstructPacket(data) {
+ if (!data) return data;
+
+ if (isBuf(data)) {
+ var placeholder = { _placeholder: true, num: buffers.length };
+ buffers.push(data);
+ return placeholder;
+ } else if (isArray(data)) {
+ var newData = new Array(data.length);
+ for (var i = 0; i < data.length; i++) {
+ newData[i] = _deconstructPacket(data[i]);
+ }
+ return newData;
+ } else if ('object' == typeof data && !(data instanceof Date)) {
+ var newData = {};
+ for (var key in data) {
+ newData[key] = _deconstructPacket(data[key]);
+ }
+ return newData;
+ }
+ return data;
+ }
+
+ var pack = packet;
+ pack.data = _deconstructPacket(packetData);
+ pack.attachments = buffers.length; // number of binary 'attachments'
+ return {packet: pack, buffers: buffers};
+};
+
+/**
+ * Reconstructs a binary packet from its placeholder packet and buffers
+ *
+ * @param {Object} packet - event packet with placeholders
+ * @param {Array} buffers - binary buffers to put in placeholder positions
+ * @return {Object} reconstructed packet
+ * @api public
+ */
+
+exports.reconstructPacket = function(packet, buffers) {
+ var curPlaceHolder = 0;
+
+ function _reconstructPacket(data) {
+ if (data && data._placeholder) {
+ var buf = buffers[data.num]; // appropriate buffer (should be natural order anyway)
+ return buf;
+ } else if (isArray(data)) {
+ for (var i = 0; i < data.length; i++) {
+ data[i] = _reconstructPacket(data[i]);
+ }
+ return data;
+ } else if (data && 'object' == typeof data) {
+ for (var key in data) {
+ data[key] = _reconstructPacket(data[key]);
+ }
+ return data;
+ }
+ return data;
+ }
+
+ packet.data = _reconstructPacket(packet.data);
+ packet.attachments = undefined; // no longer useful
+ return packet;
+};
+
+/**
+ * Asynchronously removes Blobs or Files from data via
+ * FileReader's readAsArrayBuffer method. Used before encoding
+ * data as msgpack. Calls callback with the blobless data.
+ *
+ * @param {Object} data
+ * @param {Function} callback
+ * @api private
+ */
+
+exports.removeBlobs = function(data, callback) {
+ function _removeBlobs(obj, curKey, containingObject) {
+ if (!obj) return obj;
+
+ // convert any blob
+ if ((global.Blob && obj instanceof Blob) ||
+ (global.File && obj instanceof File)) {
+ pendingBlobs++;
+
+ // async filereader
+ var fileReader = new FileReader();
+ fileReader.onload = function() { // this.result == arraybuffer
+ if (containingObject) {
+ containingObject[curKey] = this.result;
+ }
+ else {
+ bloblessData = this.result;
+ }
+
+ // if nothing pending its callback time
+ if(! --pendingBlobs) {
+ callback(bloblessData);
+ }
+ };
+
+ fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
+ } else if (isArray(obj)) { // handle array
+ for (var i = 0; i < obj.length; i++) {
+ _removeBlobs(obj[i], i, obj);
+ }
+ } else if (obj && 'object' == typeof obj && !isBuf(obj)) { // and object
+ for (var key in obj) {
+ _removeBlobs(obj[key], key, obj);
+ }
+ }
+ }
+
+ var pendingBlobs = 0;
+ var bloblessData = data;
+ _removeBlobs(bloblessData);
+ if (!pendingBlobs) {
+ callback(bloblessData);
+ }
+};
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./is-buffer":47,"isarray":48}],46:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var debug = _dereq_('debug')('socket.io-parser');
+var json = _dereq_('json3');
+var isArray = _dereq_('isarray');
+var Emitter = _dereq_('component-emitter');
+var binary = _dereq_('./binary');
+var isBuf = _dereq_('./is-buffer');
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+exports.protocol = 4;
+
+/**
+ * Packet types.
+ *
+ * @api public
+ */
+
+exports.types = [
+ 'CONNECT',
+ 'DISCONNECT',
+ 'EVENT',
+ 'BINARY_EVENT',
+ 'ACK',
+ 'BINARY_ACK',
+ 'ERROR'
+];
+
+/**
+ * Packet type `connect`.
+ *
+ * @api public
+ */
+
+exports.CONNECT = 0;
+
+/**
+ * Packet type `disconnect`.
+ *
+ * @api public
+ */
+
+exports.DISCONNECT = 1;
+
+/**
+ * Packet type `event`.
+ *
+ * @api public
+ */
+
+exports.EVENT = 2;
+
+/**
+ * Packet type `ack`.
+ *
+ * @api public
+ */
+
+exports.ACK = 3;
+
+/**
+ * Packet type `error`.
+ *
+ * @api public
+ */
+
+exports.ERROR = 4;
+
+/**
+ * Packet type 'binary event'
+ *
+ * @api public
+ */
+
+exports.BINARY_EVENT = 5;
+
+/**
+ * Packet type `binary ack`. For acks with binary arguments.
+ *
+ * @api public
+ */
+
+exports.BINARY_ACK = 6;
+
+/**
+ * Encoder constructor.
+ *
+ * @api public
+ */
+
+exports.Encoder = Encoder;
+
+/**
+ * Decoder constructor.
+ *
+ * @api public
+ */
+
+exports.Decoder = Decoder;
+
+/**
+ * A socket.io Encoder instance
+ *
+ * @api public
+ */
+
+function Encoder() {}
+
+/**
+ * Encode a packet as a single string if non-binary, or as a
+ * buffer sequence, depending on packet type.
+ *
+ * @param {Object} obj - packet object
+ * @param {Function} callback - function to handle encodings (likely engine.write)
+ * @return Calls callback with Array of encodings
+ * @api public
+ */
+
+Encoder.prototype.encode = function(obj, callback){
+ debug('encoding packet %j', obj);
+
+ if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
+ encodeAsBinary(obj, callback);
+ }
+ else {
+ var encoding = encodeAsString(obj);
+ callback([encoding]);
+ }
+};
+
+/**
+ * Encode packet as string.
+ *
+ * @param {Object} packet
+ * @return {String} encoded
+ * @api private
+ */
+
+function encodeAsString(obj) {
+ var str = '';
+ var nsp = false;
+
+ // first is type
+ str += obj.type;
+
+ // attachments if we have them
+ if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
+ str += obj.attachments;
+ str += '-';
+ }
+
+ // if we have a namespace other than `/`
+ // we append it followed by a comma `,`
+ if (obj.nsp && '/' != obj.nsp) {
+ nsp = true;
+ str += obj.nsp;
+ }
+
+ // immediately followed by the id
+ if (null != obj.id) {
+ if (nsp) {
+ str += ',';
+ nsp = false;
+ }
+ str += obj.id;
+ }
+
+ // json data
+ if (null != obj.data) {
+ if (nsp) str += ',';
+ str += json.stringify(obj.data);
+ }
+
+ debug('encoded %j as %s', obj, str);
+ return str;
+}
+
+/**
+ * Encode packet as 'buffer sequence' by removing blobs, and
+ * deconstructing packet into object with placeholders and
+ * a list of buffers.
+ *
+ * @param {Object} packet
+ * @return {Buffer} encoded
+ * @api private
+ */
+
+function encodeAsBinary(obj, callback) {
+
+ function writeEncoding(bloblessData) {
+ var deconstruction = binary.deconstructPacket(bloblessData);
+ var pack = encodeAsString(deconstruction.packet);
+ var buffers = deconstruction.buffers;
+
+ buffers.unshift(pack); // add packet info to beginning of data list
+ callback(buffers); // write all the buffers
+ }
+
+ binary.removeBlobs(obj, writeEncoding);
+}
+
+/**
+ * A socket.io Decoder instance
+ *
+ * @return {Object} decoder
+ * @api public
+ */
+
+function Decoder() {
+ this.reconstructor = null;
+}
+
+/**
+ * Mix in `Emitter` with Decoder.
+ */
+
+Emitter(Decoder.prototype);
+
+/**
+ * Decodes an ecoded packet string into packet JSON.
+ *
+ * @param {String} obj - encoded packet
+ * @return {Object} packet
+ * @api public
+ */
+
+Decoder.prototype.add = function(obj) {
+ var packet;
+ if ('string' == typeof obj) {
+ packet = decodeString(obj);
+ if (exports.BINARY_EVENT == packet.type || exports.BINARY_ACK == packet.type) { // binary packet's json
+ this.reconstructor = new BinaryReconstructor(packet);
+
+ // no attachments, labeled binary but no binary data to follow
+ if (this.reconstructor.reconPack.attachments === 0) {
+ this.emit('decoded', packet);
+ }
+ } else { // non-binary full packet
+ this.emit('decoded', packet);
+ }
+ }
+ else if (isBuf(obj) || obj.base64) { // raw binary data
+ if (!this.reconstructor) {
+ throw new Error('got binary data when not reconstructing a packet');
+ } else {
+ packet = this.reconstructor.takeBinaryData(obj);
+ if (packet) { // received final buffer
+ this.reconstructor = null;
+ this.emit('decoded', packet);
+ }
+ }
+ }
+ else {
+ throw new Error('Unknown type: ' + obj);
+ }
+};
+
+/**
+ * Decode a packet String (JSON data)
+ *
+ * @param {String} str
+ * @return {Object} packet
+ * @api private
+ */
+
+function decodeString(str) {
+ var p = {};
+ var i = 0;
+
+ // look up type
+ p.type = Number(str.charAt(0));
+ if (null == exports.types[p.type]) return error();
+
+ // look up attachments if type binary
+ if (exports.BINARY_EVENT == p.type || exports.BINARY_ACK == p.type) {
+ var buf = '';
+ while (str.charAt(++i) != '-') {
+ buf += str.charAt(i);
+ if (i == str.length) break;
+ }
+ if (buf != Number(buf) || str.charAt(i) != '-') {
+ throw new Error('Illegal attachments');
+ }
+ p.attachments = Number(buf);
+ }
+
+ // look up namespace (if any)
+ if ('/' == str.charAt(i + 1)) {
+ p.nsp = '';
+ while (++i) {
+ var c = str.charAt(i);
+ if (',' == c) break;
+ p.nsp += c;
+ if (i == str.length) break;
+ }
+ } else {
+ p.nsp = '/';
+ }
+
+ // look up id
+ var next = str.charAt(i + 1);
+ if ('' !== next && Number(next) == next) {
+ p.id = '';
+ while (++i) {
+ var c = str.charAt(i);
+ if (null == c || Number(c) != c) {
+ --i;
+ break;
+ }
+ p.id += str.charAt(i);
+ if (i == str.length) break;
+ }
+ p.id = Number(p.id);
+ }
+
+ // look up json data
+ if (str.charAt(++i)) {
+ try {
+ p.data = json.parse(str.substr(i));
+ } catch(e){
+ return error();
+ }
+ }
+
+ debug('decoded %s as %j', str, p);
+ return p;
+}
+
+/**
+ * Deallocates a parser's resources
+ *
+ * @api public
+ */
+
+Decoder.prototype.destroy = function() {
+ if (this.reconstructor) {
+ this.reconstructor.finishedReconstruction();
+ }
+};
+
+/**
+ * A manager of a binary event's 'buffer sequence'. Should
+ * be constructed whenever a packet of type BINARY_EVENT is
+ * decoded.
+ *
+ * @param {Object} packet
+ * @return {BinaryReconstructor} initialized reconstructor
+ * @api private
+ */
+
+function BinaryReconstructor(packet) {
+ this.reconPack = packet;
+ this.buffers = [];
+}
+
+/**
+ * Method to be called when binary data received from connection
+ * after a BINARY_EVENT packet.
+ *
+ * @param {Buffer | ArrayBuffer} binData - the raw binary data received
+ * @return {null | Object} returns null if more binary data is expected or
+ * a reconstructed packet object if all buffers have been received.
+ * @api private
+ */
+
+BinaryReconstructor.prototype.takeBinaryData = function(binData) {
+ this.buffers.push(binData);
+ if (this.buffers.length == this.reconPack.attachments) { // done with buffer list
+ var packet = binary.reconstructPacket(this.reconPack, this.buffers);
+ this.finishedReconstruction();
+ return packet;
+ }
+ return null;
+};
+
+/**
+ * Cleans up binary packet reconstruction variables.
+ *
+ * @api private
+ */
+
+BinaryReconstructor.prototype.finishedReconstruction = function() {
+ this.reconPack = null;
+ this.buffers = [];
+};
+
+function error(data){
+ return {
+ type: exports.ERROR,
+ data: 'parser error'
+ };
+}
+
+},{"./binary":45,"./is-buffer":47,"component-emitter":9,"debug":10,"isarray":48,"json3":49}],47:[function(_dereq_,module,exports){
+(function (global){
+
+module.exports = isBuf;
+
+/**
+ * Returns true if obj is a buffer or an arraybuffer.
+ *
+ * @api private
+ */
+
+function isBuf(obj) {
+ return (global.Buffer && global.Buffer.isBuffer(obj)) ||
+ (global.ArrayBuffer && obj instanceof ArrayBuffer);
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],48:[function(_dereq_,module,exports){
+module.exports=_dereq_(32)
+},{}],49:[function(_dereq_,module,exports){
+/*! JSON v3.2.6 | http://bestiejs.github.io/json3 | Copyright 2012-2013, Kit Cambridge | http://kit.mit-license.org */
+;(function (window) {
+ // Convenience aliases.
+ var getClass = {}.toString, isProperty, forEach, undef;
+
+ // Detect the `define` function exposed by asynchronous module loaders. The
+ // strict `define` check is necessary for compatibility with `r.js`.
+ var isLoader = typeof define === "function" && define.amd;
+
+ // Detect native implementations.
+ var nativeJSON = typeof JSON == "object" && JSON;
+
+ // Set up the JSON 3 namespace, preferring the CommonJS `exports` object if
+ // available.
+ var JSON3 = typeof exports == "object" && exports && !exports.nodeType && exports;
+
+ if (JSON3 && nativeJSON) {
+ // Explicitly delegate to the native `stringify` and `parse`
+ // implementations in CommonJS environments.
+ JSON3.stringify = nativeJSON.stringify;
+ JSON3.parse = nativeJSON.parse;
+ } else {
+ // Export for web browsers, JavaScript engines, and asynchronous module
+ // loaders, using the global `JSON` object if available.
+ JSON3 = window.JSON = nativeJSON || {};
+ }
+
+ // Test the `Date#getUTC*` methods. Based on work by @Yaffle.
+ var isExtended = new Date(-3509827334573292);
+ try {
+ // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical
+ // results for certain dates in Opera >= 10.53.
+ isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&
+ // Safari < 2.0.2 stores the internal millisecond time value correctly,
+ // but clips the values returned by the date methods to the range of
+ // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).
+ isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;
+ } catch (exception) {}
+
+ // Internal: Determines whether the native `JSON.stringify` and `parse`
+ // implementations are spec-compliant. Based on work by Ken Snyder.
+ function has(name) {
+ if (has[name] !== undef) {
+ // Return cached feature test result.
+ return has[name];
+ }
+
+ var isSupported;
+ if (name == "bug-string-char-index") {
+ // IE <= 7 doesn't support accessing string characters using square
+ // bracket notation. IE 8 only supports this for primitives.
+ isSupported = "a"[0] != "a";
+ } else if (name == "json") {
+ // Indicates whether both `JSON.stringify` and `JSON.parse` are
+ // supported.
+ isSupported = has("json-stringify") && has("json-parse");
+ } else {
+ var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';
+ // Test `JSON.stringify`.
+ if (name == "json-stringify") {
+ var stringify = JSON3.stringify, stringifySupported = typeof stringify == "function" && isExtended;
+ if (stringifySupported) {
+ // A test function object with a custom `toJSON` method.
+ (value = function () {
+ return 1;
+ }).toJSON = value;
+ try {
+ stringifySupported =
+ // Firefox 3.1b1 and b2 serialize string, number, and boolean
+ // primitives as object literals.
+ stringify(0) === "0" &&
+ // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object
+ // literals.
+ stringify(new Number()) === "0" &&
+ stringify(new String()) == '""' &&
+ // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or
+ // does not define a canonical JSON representation (this applies to
+ // objects with `toJSON` properties as well, *unless* they are nested
+ // within an object or array).
+ stringify(getClass) === undef &&
+ // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and
+ // FF 3.1b3 pass this test.
+ stringify(undef) === undef &&
+ // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,
+ // respectively, if the value is omitted entirely.
+ stringify() === undef &&
+ // FF 3.1b1, 2 throw an error if the given value is not a number,
+ // string, array, object, Boolean, or `null` literal. This applies to
+ // objects with custom `toJSON` methods as well, unless they are nested
+ // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`
+ // methods entirely.
+ stringify(value) === "1" &&
+ stringify([value]) == "[1]" &&
+ // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of
+ // `"[null]"`.
+ stringify([undef]) == "[null]" &&
+ // YUI 3.0.0b1 fails to serialize `null` literals.
+ stringify(null) == "null" &&
+ // FF 3.1b1, 2 halts serialization if an array contains a function:
+ // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3
+ // elides non-JSON values from objects and arrays, unless they
+ // define custom `toJSON` methods.
+ stringify([undef, getClass, null]) == "[null,null,null]" &&
+ // Simple serialization test. FF 3.1b1 uses Unicode escape sequences
+ // where character escape codes are expected (e.g., `\b` => `\u0008`).
+ stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized &&
+ // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.
+ stringify(null, value) === "1" &&
+ stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" &&
+ // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly
+ // serialize extended years.
+ stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' &&
+ // The milliseconds are optional in ES 5, but required in 5.1.
+ stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' &&
+ // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative
+ // four-digit years instead of six-digit years. Credits: @Yaffle.
+ stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' &&
+ // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond
+ // values less than 1000. Credits: @Yaffle.
+ stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"';
+ } catch (exception) {
+ stringifySupported = false;
+ }
+ }
+ isSupported = stringifySupported;
+ }
+ // Test `JSON.parse`.
+ if (name == "json-parse") {
+ var parse = JSON3.parse;
+ if (typeof parse == "function") {
+ try {
+ // FF 3.1b1, b2 will throw an exception if a bare literal is provided.
+ // Conforming implementations should also coerce the initial argument to
+ // a string prior to parsing.
+ if (parse("0") === 0 && !parse(false)) {
+ // Simple parsing test.
+ value = parse(serialized);
+ var parseSupported = value["a"].length == 5 && value["a"][0] === 1;
+ if (parseSupported) {
+ try {
+ // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.
+ parseSupported = !parse('"\t"');
+ } catch (exception) {}
+ if (parseSupported) {
+ try {
+ // FF 4.0 and 4.0.1 allow leading `+` signs and leading
+ // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow
+ // certain octal literals.
+ parseSupported = parse("01") !== 1;
+ } catch (exception) {}
+ }
+ if (parseSupported) {
+ try {
+ // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal
+ // points. These environments, along with FF 3.1b1 and 2,
+ // also allow trailing commas in JSON objects and arrays.
+ parseSupported = parse("1.") !== 1;
+ } catch (exception) {}
+ }
+ }
+ }
+ } catch (exception) {
+ parseSupported = false;
+ }
+ }
+ isSupported = parseSupported;
+ }
+ }
+ return has[name] = !!isSupported;
+ }
+
+ if (!has("json")) {
+ // Common `[[Class]]` name aliases.
+ var functionClass = "[object Function]";
+ var dateClass = "[object Date]";
+ var numberClass = "[object Number]";
+ var stringClass = "[object String]";
+ var arrayClass = "[object Array]";
+ var booleanClass = "[object Boolean]";
+
+ // Detect incomplete support for accessing string characters by index.
+ var charIndexBuggy = has("bug-string-char-index");
+
+ // Define additional utility methods if the `Date` methods are buggy.
+ if (!isExtended) {
+ var floor = Math.floor;
+ // A mapping between the months of the year and the number of days between
+ // January 1st and the first of the respective month.
+ var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
+ // Internal: Calculates the number of days between the Unix epoch and the
+ // first day of the given month.
+ var getDay = function (year, month) {
+ return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
+ };
+ }
+
+ // Internal: Determines if a property is a direct property of the given
+ // object. Delegates to the native `Object#hasOwnProperty` method.
+ if (!(isProperty = {}.hasOwnProperty)) {
+ isProperty = function (property) {
+ var members = {}, constructor;
+ if ((members.__proto__ = null, members.__proto__ = {
+ // The *proto* property cannot be set multiple times in recent
+ // versions of Firefox and SeaMonkey.
+ "toString": 1
+ }, members).toString != getClass) {
+ // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but
+ // supports the mutable *proto* property.
+ isProperty = function (property) {
+ // Capture and break the object's prototype chain (see section 8.6.2
+ // of the ES 5.1 spec). The parenthesized expression prevents an
+ // unsafe transformation by the Closure Compiler.
+ var original = this.__proto__, result = property in (this.__proto__ = null, this);
+ // Restore the original prototype chain.
+ this.__proto__ = original;
+ return result;
+ };
+ } else {
+ // Capture a reference to the top-level `Object` constructor.
+ constructor = members.constructor;
+ // Use the `constructor` property to simulate `Object#hasOwnProperty` in
+ // other environments.
+ isProperty = function (property) {
+ var parent = (this.constructor || constructor).prototype;
+ return property in this && !(property in parent && this[property] === parent[property]);
+ };
+ }
+ members = null;
+ return isProperty.call(this, property);
+ };
+ }
+
+ // Internal: A set of primitive types used by `isHostType`.
+ var PrimitiveTypes = {
+ 'boolean': 1,
+ 'number': 1,
+ 'string': 1,
+ 'undefined': 1
+ };
+
+ // Internal: Determines if the given object `property` value is a
+ // non-primitive.
+ var isHostType = function (object, property) {
+ var type = typeof object[property];
+ return type == 'object' ? !!object[property] : !PrimitiveTypes[type];
+ };
+
+ // Internal: Normalizes the `for...in` iteration algorithm across
+ // environments. Each enumerated key is yielded to a `callback` function.
+ forEach = function (object, callback) {
+ var size = 0, Properties, members, property;
+
+ // Tests for bugs in the current environment's `for...in` algorithm. The
+ // `valueOf` property inherits the non-enumerable flag from
+ // `Object.prototype` in older versions of IE, Netscape, and Mozilla.
+ (Properties = function () {
+ this.valueOf = 0;
+ }).prototype.valueOf = 0;
+
+ // Iterate over a new instance of the `Properties` class.
+ members = new Properties();
+ for (property in members) {
+ // Ignore all properties inherited from `Object.prototype`.
+ if (isProperty.call(members, property)) {
+ size++;
+ }
+ }
+ Properties = members = null;
+
+ // Normalize the iteration algorithm.
+ if (!size) {
+ // A list of non-enumerable properties inherited from `Object.prototype`.
+ members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"];
+ // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable
+ // properties.
+ forEach = function (object, callback) {
+ var isFunction = getClass.call(object) == functionClass, property, length;
+ var hasProperty = !isFunction && typeof object.constructor != 'function' && isHostType(object, 'hasOwnProperty') ? object.hasOwnProperty : isProperty;
+ for (property in object) {
+ // Gecko <= 1.0 enumerates the `prototype` property of functions under
+ // certain conditions; IE does not.
+ if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) {
+ callback(property);
+ }
+ }
+ // Manually invoke the callback for each non-enumerable property.
+ for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));
+ };
+ } else if (size == 2) {
+ // Safari <= 2.0.4 enumerates shadowed properties twice.
+ forEach = function (object, callback) {
+ // Create a set of iterated properties.
+ var members = {}, isFunction = getClass.call(object) == functionClass, property;
+ for (property in object) {
+ // Store each property name to prevent double enumeration. The
+ // `prototype` property of functions is not enumerated due to cross-
+ // environment inconsistencies.
+ if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {
+ callback(property);
+ }
+ }
+ };
+ } else {
+ // No bugs detected; use the standard `for...in` algorithm.
+ forEach = function (object, callback) {
+ var isFunction = getClass.call(object) == functionClass, property, isConstructor;
+ for (property in object) {
+ if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) {
+ callback(property);
+ }
+ }
+ // Manually invoke the callback for the `constructor` property due to
+ // cross-environment inconsistencies.
+ if (isConstructor || isProperty.call(object, (property = "constructor"))) {
+ callback(property);
+ }
+ };
+ }
+ return forEach(object, callback);
+ };
+
+ // Public: Serializes a JavaScript `value` as a JSON string. The optional
+ // `filter` argument may specify either a function that alters how object and
+ // array members are serialized, or an array of strings and numbers that
+ // indicates which properties should be serialized. The optional `width`
+ // argument may be either a string or number that specifies the indentation
+ // level of the output.
+ if (!has("json-stringify")) {
+ // Internal: A map of control characters and their escaped equivalents.
+ var Escapes = {
+ 92: "\\\\",
+ 34: '\\"',
+ 8: "\\b",
+ 12: "\\f",
+ 10: "\\n",
+ 13: "\\r",
+ 9: "\\t"
+ };
+
+ // Internal: Converts `value` into a zero-padded string such that its
+ // length is at least equal to `width`. The `width` must be <= 6.
+ var leadingZeroes = "000000";
+ var toPaddedString = function (width, value) {
+ // The `|| 0` expression is necessary to work around a bug in
+ // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`.
+ return (leadingZeroes + (value || 0)).slice(-width);
+ };
+
+ // Internal: Double-quotes a string `value`, replacing all ASCII control
+ // characters (characters with code unit values between 0 and 31) with
+ // their escaped equivalents. This is an implementation of the
+ // `Quote(value)` operation defined in ES 5.1 section 15.12.3.
+ var unicodePrefix = "\\u00";
+ var quote = function (value) {
+ var result = '"', index = 0, length = value.length, isLarge = length > 10 && charIndexBuggy, symbols;
+ if (isLarge) {
+ symbols = value.split("");
+ }
+ for (; index < length; index++) {
+ var charCode = value.charCodeAt(index);
+ // If the character is a control character, append its Unicode or
+ // shorthand escape sequence; otherwise, append the character as-is.
+ switch (charCode) {
+ case 8: case 9: case 10: case 12: case 13: case 34: case 92:
+ result += Escapes[charCode];
+ break;
+ default:
+ if (charCode < 32) {
+ result += unicodePrefix + toPaddedString(2, charCode.toString(16));
+ break;
+ }
+ result += isLarge ? symbols[index] : charIndexBuggy ? value.charAt(index) : value[index];
+ }
+ }
+ return result + '"';
+ };
+
+ // Internal: Recursively serializes an object. Implements the
+ // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.
+ var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {
+ var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;
+ try {
+ // Necessary for host object support.
+ value = object[property];
+ } catch (exception) {}
+ if (typeof value == "object" && value) {
+ className = getClass.call(value);
+ if (className == dateClass && !isProperty.call(value, "toJSON")) {
+ if (value > -1 / 0 && value < 1 / 0) {
+ // Dates are serialized according to the `Date#toJSON` method
+ // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15
+ // for the ISO 8601 date time string format.
+ if (getDay) {
+ // Manually compute the year, month, date, hours, minutes,
+ // seconds, and milliseconds if the `getUTC*` methods are
+ // buggy. Adapted from @Yaffle's `date-shim` project.
+ date = floor(value / 864e5);
+ for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);
+ for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);
+ date = 1 + date - getDay(year, month);
+ // The `time` value specifies the time within the day (see ES
+ // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used
+ // to compute `A modulo B`, as the `%` operator does not
+ // correspond to the `modulo` operation for negative numbers.
+ time = (value % 864e5 + 864e5) % 864e5;
+ // The hours, minutes, seconds, and milliseconds are obtained by
+ // decomposing the time within the day. See section 15.9.1.10.
+ hours = floor(time / 36e5) % 24;
+ minutes = floor(time / 6e4) % 60;
+ seconds = floor(time / 1e3) % 60;
+ milliseconds = time % 1e3;
+ } else {
+ year = value.getUTCFullYear();
+ month = value.getUTCMonth();
+ date = value.getUTCDate();
+ hours = value.getUTCHours();
+ minutes = value.getUTCMinutes();
+ seconds = value.getUTCSeconds();
+ milliseconds = value.getUTCMilliseconds();
+ }
+ // Serialize extended years correctly.
+ value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +
+ "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) +
+ // Months, dates, hours, minutes, and seconds should have two
+ // digits; milliseconds should have three.
+ "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) +
+ // Milliseconds are optional in ES 5.0, but required in 5.1.
+ "." + toPaddedString(3, milliseconds) + "Z";
+ } else {
+ value = null;
+ }
+ } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) {
+ // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the
+ // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3
+ // ignores all `toJSON` methods on these objects unless they are
+ // defined directly on an instance.
+ value = value.toJSON(property);
+ }
+ }
+ if (callback) {
+ // If a replacement function was provided, call it to obtain the value
+ // for serialization.
+ value = callback.call(object, property, value);
+ }
+ if (value === null) {
+ return "null";
+ }
+ className = getClass.call(value);
+ if (className == booleanClass) {
+ // Booleans are represented literally.
+ return "" + value;
+ } else if (className == numberClass) {
+ // JSON numbers must be finite. `Infinity` and `NaN` are serialized as
+ // `"null"`.
+ return value > -1 / 0 && value < 1 / 0 ? "" + value : "null";
+ } else if (className == stringClass) {
+ // Strings are double-quoted and escaped.
+ return quote("" + value);
+ }
+ // Recursively serialize objects and arrays.
+ if (typeof value == "object") {
+ // Check for cyclic structures. This is a linear search; performance
+ // is inversely proportional to the number of unique nested objects.
+ for (length = stack.length; length--;) {
+ if (stack[length] === value) {
+ // Cyclic structures cannot be serialized by `JSON.stringify`.
+ throw TypeError();
+ }
+ }
+ // Add the object to the stack of traversed objects.
+ stack.push(value);
+ results = [];
+ // Save the current indentation level and indent one additional level.
+ prefix = indentation;
+ indentation += whitespace;
+ if (className == arrayClass) {
+ // Recursively serialize array elements.
+ for (index = 0, length = value.length; index < length; index++) {
+ element = serialize(index, value, callback, properties, whitespace, indentation, stack);
+ results.push(element === undef ? "null" : element);
+ }
+ result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]";
+ } else {
+ // Recursively serialize object members. Members are selected from
+ // either a user-specified list of property names, or the object
+ // itself.
+ forEach(properties || value, function (property) {
+ var element = serialize(property, value, callback, properties, whitespace, indentation, stack);
+ if (element !== undef) {
+ // According to ES 5.1 section 15.12.3: "If `gap` {whitespace}
+ // is not the empty string, let `member` {quote(property) + ":"}
+ // be the concatenation of `member` and the `space` character."
+ // The "`space` character" refers to the literal space
+ // character, not the `space` {width} argument provided to
+ // `JSON.stringify`.
+ results.push(quote(property) + ":" + (whitespace ? " " : "") + element);
+ }
+ });
+ result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}";
+ }
+ // Remove the object from the traversed object stack.
+ stack.pop();
+ return result;
+ }
+ };
+
+ // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.
+ JSON3.stringify = function (source, filter, width) {
+ var whitespace, callback, properties, className;
+ if (typeof filter == "function" || typeof filter == "object" && filter) {
+ if ((className = getClass.call(filter)) == functionClass) {
+ callback = filter;
+ } else if (className == arrayClass) {
+ // Convert the property names array into a makeshift set.
+ properties = {};
+ for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));
+ }
+ }
+ if (width) {
+ if ((className = getClass.call(width)) == numberClass) {
+ // Convert the `width` to an integer and create a string containing
+ // `width` number of space characters.
+ if ((width -= width % 1) > 0) {
+ for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " ");
+ }
+ } else if (className == stringClass) {
+ whitespace = width.length <= 10 ? width : width.slice(0, 10);
+ }
+ }
+ // Opera <= 7.54u2 discards the values associated with empty string keys
+ // (`""`) only if they are used directly within an object member list
+ // (e.g., `!("" in { "": 1})`).
+ return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []);
+ };
+ }
+
+ // Public: Parses a JSON source string.
+ if (!has("json-parse")) {
+ var fromCharCode = String.fromCharCode;
+
+ // Internal: A map of escaped control characters and their unescaped
+ // equivalents.
+ var Unescapes = {
+ 92: "\\",
+ 34: '"',
+ 47: "/",
+ 98: "\b",
+ 116: "\t",
+ 110: "\n",
+ 102: "\f",
+ 114: "\r"
+ };
+
+ // Internal: Stores the parser state.
+ var Index, Source;
+
+ // Internal: Resets the parser state and throws a `SyntaxError`.
+ var abort = function() {
+ Index = Source = null;
+ throw SyntaxError();
+ };
+
+ // Internal: Returns the next token, or `"$"` if the parser has reached
+ // the end of the source string. A token may be a string, number, `null`
+ // literal, or Boolean literal.
+ var lex = function () {
+ var source = Source, length = source.length, value, begin, position, isSigned, charCode;
+ while (Index < length) {
+ charCode = source.charCodeAt(Index);
+ switch (charCode) {
+ case 9: case 10: case 13: case 32:
+ // Skip whitespace tokens, including tabs, carriage returns, line
+ // feeds, and space characters.
+ Index++;
+ break;
+ case 123: case 125: case 91: case 93: case 58: case 44:
+ // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at
+ // the current position.
+ value = charIndexBuggy ? source.charAt(Index) : source[Index];
+ Index++;
+ return value;
+ case 34:
+ // `"` delimits a JSON string; advance to the next character and
+ // begin parsing the string. String tokens are prefixed with the
+ // sentinel `@` character to distinguish them from punctuators and
+ // end-of-string tokens.
+ for (value = "@", Index++; Index < length;) {
+ charCode = source.charCodeAt(Index);
+ if (charCode < 32) {
+ // Unescaped ASCII control characters (those with a code unit
+ // less than the space character) are not permitted.
+ abort();
+ } else if (charCode == 92) {
+ // A reverse solidus (`\`) marks the beginning of an escaped
+ // control character (including `"`, `\`, and `/`) or Unicode
+ // escape sequence.
+ charCode = source.charCodeAt(++Index);
+ switch (charCode) {
+ case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:
+ // Revive escaped control characters.
+ value += Unescapes[charCode];
+ Index++;
+ break;
+ case 117:
+ // `\u` marks the beginning of a Unicode escape sequence.
+ // Advance to the first character and validate the
+ // four-digit code point.
+ begin = ++Index;
+ for (position = Index + 4; Index < position; Index++) {
+ charCode = source.charCodeAt(Index);
+ // A valid sequence comprises four hexdigits (case-
+ // insensitive) that form a single hexadecimal value.
+ if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {
+ // Invalid Unicode escape sequence.
+ abort();
+ }
+ }
+ // Revive the escaped character.
+ value += fromCharCode("0x" + source.slice(begin, Index));
+ break;
+ default:
+ // Invalid escape sequence.
+ abort();
+ }
+ } else {
+ if (charCode == 34) {
+ // An unescaped double-quote character marks the end of the
+ // string.
+ break;
+ }
+ charCode = source.charCodeAt(Index);
+ begin = Index;
+ // Optimize for the common case where a string is valid.
+ while (charCode >= 32 && charCode != 92 && charCode != 34) {
+ charCode = source.charCodeAt(++Index);
+ }
+ // Append the string as-is.
+ value += source.slice(begin, Index);
+ }
+ }
+ if (source.charCodeAt(Index) == 34) {
+ // Advance to the next character and return the revived string.
+ Index++;
+ return value;
+ }
+ // Unterminated string.
+ abort();
+ default:
+ // Parse numbers and literals.
+ begin = Index;
+ // Advance past the negative sign, if one is specified.
+ if (charCode == 45) {
+ isSigned = true;
+ charCode = source.charCodeAt(++Index);
+ }
+ // Parse an integer or floating-point value.
+ if (charCode >= 48 && charCode <= 57) {
+ // Leading zeroes are interpreted as octal literals.
+ if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {
+ // Illegal octal literal.
+ abort();
+ }
+ isSigned = false;
+ // Parse the integer component.
+ for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);
+ // Floats cannot contain a leading decimal point; however, this
+ // case is already accounted for by the parser.
+ if (source.charCodeAt(Index) == 46) {
+ position = ++Index;
+ // Parse the decimal component.
+ for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
+ if (position == Index) {
+ // Illegal trailing decimal.
+ abort();
+ }
+ Index = position;
+ }
+ // Parse exponents. The `e` denoting the exponent is
+ // case-insensitive.
+ charCode = source.charCodeAt(Index);
+ if (charCode == 101 || charCode == 69) {
+ charCode = source.charCodeAt(++Index);
+ // Skip past the sign following the exponent, if one is
+ // specified.
+ if (charCode == 43 || charCode == 45) {
+ Index++;
+ }
+ // Parse the exponential component.
+ for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
+ if (position == Index) {
+ // Illegal empty exponent.
+ abort();
+ }
+ Index = position;
+ }
+ // Coerce the parsed value to a JavaScript number.
+ return +source.slice(begin, Index);
+ }
+ // A negative sign may only precede numbers.
+ if (isSigned) {
+ abort();
+ }
+ // `true`, `false`, and `null` literals.
+ if (source.slice(Index, Index + 4) == "true") {
+ Index += 4;
+ return true;
+ } else if (source.slice(Index, Index + 5) == "false") {
+ Index += 5;
+ return false;
+ } else if (source.slice(Index, Index + 4) == "null") {
+ Index += 4;
+ return null;
+ }
+ // Unrecognized token.
+ abort();
+ }
+ }
+ // Return the sentinel `$` character if the parser has reached the end
+ // of the source string.
+ return "$";
+ };
+
+ // Internal: Parses a JSON `value` token.
+ var get = function (value) {
+ var results, hasMembers;
+ if (value == "$") {
+ // Unexpected end of input.
+ abort();
+ }
+ if (typeof value == "string") {
+ if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") {
+ // Remove the sentinel `@` character.
+ return value.slice(1);
+ }
+ // Parse object and array literals.
+ if (value == "[") {
+ // Parses a JSON array, returning a new JavaScript array.
+ results = [];
+ for (;; hasMembers || (hasMembers = true)) {
+ value = lex();
+ // A closing square bracket marks the end of the array literal.
+ if (value == "]") {
+ break;
+ }
+ // If the array literal contains elements, the current token
+ // should be a comma separating the previous element from the
+ // next.
+ if (hasMembers) {
+ if (value == ",") {
+ value = lex();
+ if (value == "]") {
+ // Unexpected trailing `,` in array literal.
+ abort();
+ }
+ } else {
+ // A `,` must separate each array element.
+ abort();
+ }
+ }
+ // Elisions and leading commas are not permitted.
+ if (value == ",") {
+ abort();
+ }
+ results.push(get(value));
+ }
+ return results;
+ } else if (value == "{") {
+ // Parses a JSON object, returning a new JavaScript object.
+ results = {};
+ for (;; hasMembers || (hasMembers = true)) {
+ value = lex();
+ // A closing curly brace marks the end of the object literal.
+ if (value == "}") {
+ break;
+ }
+ // If the object literal contains members, the current token
+ // should be a comma separator.
+ if (hasMembers) {
+ if (value == ",") {
+ value = lex();
+ if (value == "}") {
+ // Unexpected trailing `,` in object literal.
+ abort();
+ }
+ } else {
+ // A `,` must separate each object member.
+ abort();
+ }
+ }
+ // Leading commas are not permitted, object property names must be
+ // double-quoted strings, and a `:` must separate each property
+ // name and value.
+ if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") {
+ abort();
+ }
+ results[value.slice(1)] = get(lex());
+ }
+ return results;
+ }
+ // Unexpected token encountered.
+ abort();
+ }
+ return value;
+ };
+
+ // Internal: Updates a traversed object member.
+ var update = function(source, property, callback) {
+ var element = walk(source, property, callback);
+ if (element === undef) {
+ delete source[property];
+ } else {
+ source[property] = element;
+ }
+ };
+
+ // Internal: Recursively traverses a parsed JSON object, invoking the
+ // `callback` function for each value. This is an implementation of the
+ // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.
+ var walk = function (source, property, callback) {
+ var value = source[property], length;
+ if (typeof value == "object" && value) {
+ // `forEach` can't be used to traverse an array in Opera <= 8.54
+ // because its `Object#hasOwnProperty` implementation returns `false`
+ // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`).
+ if (getClass.call(value) == arrayClass) {
+ for (length = value.length; length--;) {
+ update(value, length, callback);
+ }
+ } else {
+ forEach(value, function (property) {
+ update(value, property, callback);
+ });
+ }
+ }
+ return callback.call(source, property, value);
+ };
+
+ // Public: `JSON.parse`. See ES 5.1 section 15.12.2.
+ JSON3.parse = function (source, callback) {
+ var result, value;
+ Index = 0;
+ Source = "" + source;
+ result = get(lex());
+ // If a JSON string contains multiple tokens, it is invalid.
+ if (lex() != "$") {
+ abort();
+ }
+ // Reset the parser state.
+ Index = Source = null;
+ return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result;
+ };
+ }
+ }
+
+ // Export for asynchronous module loaders.
+ if (isLoader) {
+ define(function () {
+ return JSON3;
+ });
+ }
+}(this));
+
+},{}],50:[function(_dereq_,module,exports){
+module.exports = toArray
+
+function toArray(list, index) {
+ var array = []
+
+ index = index || 0
+
+ for (var i = index || 0; i < list.length; i++) {
+ array[i - index] = list[i]
+ }
+
+ return array
+}
+
+},{}]},{},[1])
+(1)
+});
diff --git a/support/browserify.js b/support/browserify.js
new file mode 100644
index 0000000..f420df0
--- /dev/null
+++ b/support/browserify.js
@@ -0,0 +1,41 @@
+
+/**
+ * Module dependencies.
+ */
+
+var browserify = require('browserify');
+var path = require.resolve('../');
+
+/**
+ * Module exports.
+ */
+
+module.exports = build;
+
+/**
+ * Make the build.
+ *
+ * @api public
+ */
+
+
+function build(fn){
+ var opts = {};
+ opts.builtins = false;
+ opts.entries = [path];
+ var bundle = {};
+ bundle.standalone = 'io';
+ bundle.insertGlobalVars = { global: glob };
+ browserify(opts).bundle(bundle, fn);
+}
+
+/**
+ * Populates `global`.
+ *
+ * @api private
+ */
+
+function glob(){
+ return 'typeof self !== "undefined" ? self : '
+ + 'typeof window !== "undefined" ? window : {}';
+}
diff --git a/support/browserify.sh b/support/browserify.sh
new file mode 100755
index 0000000..0ea6a6a
--- /dev/null
+++ b/support/browserify.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env node
+
+require('./browserify')(function(err, out){
+ if (err) throw err;
+ console.log(out);
+});
diff --git a/test/connection.js b/test/connection.js
new file mode 100644
index 0000000..93a218a
--- /dev/null
+++ b/test/connection.js
@@ -0,0 +1,506 @@
+var expect = require('expect.js');
+var io = require('../');
+var hasCORS = require('has-cors');
+var textBlobBuilder = require('text-blob-builder');
+
+describe('connection', function() {
+ this.timeout(70000);
+
+ it('should connect to localhost', function(done) {
+ var socket = io({ forceNew: true });
+ socket.emit('hi');
+ socket.on('hi', function(data){
+ socket.disconnect();
+ done();
+ });
+ });
+
+ it('should not connect when autoConnect option set to false', function() {
+ var socket = io({ forceNew: true, autoConnect: false });
+ expect(socket.io.engine).to.not.be.ok();
+ socket.disconnect();
+ });
+
+ it('should work with acks', function(done){
+ var socket = io({ forceNew: true });
+ socket.emit('ack');
+ socket.on('ack', function(fn){
+ fn(5, { test: true });
+ });
+ socket.on('got it', function(){
+ socket.disconnect();
+ done();
+ });
+ });
+
+ it('should receive date with ack', function(done){
+ var socket = io({ forceNew: true });
+ socket.emit('getAckDate', { test: true }, function(data){
+ expect(data).to.be.a('string');
+ socket.disconnect();
+ done();
+ });
+ });
+
+ it('should work with false', function(done){
+ var socket = io({ forceNew: true });
+ socket.emit('false');
+ socket.on('false', function(f){
+ expect(f).to.be(false);
+ socket.disconnect();
+ done();
+ });
+ });
+
+ it('should receive utf8 multibyte characters', function(done) {
+ var correct = [
+ 'てすと',
+ 'Я Б Г Д Ж Й',
+ 'Ä ä Ü ü ß',
+ 'utf8 — string',
+ 'utf8 — string'
+ ];
+
+ var socket = io({ forceNew: true });
+ var i = 0;
+ socket.on('takeUtf8', function(data) {
+ expect(data).to.be(correct[i]);
+ i++;
+ if (i == correct.length) {
+ socket.disconnect();
+ done();
+ }
+ });
+ socket.emit('getUtf8');
+ });
+
+ it('should connect to a namespace after connection established', function(done) {
+ var manager = io.Manager();
+ var socket = manager.socket('/');
+ socket.on('connect', function(){
+ var foo = manager.socket('/foo');
+ foo.on('connect', function(){
+ foo.close();
+ socket.close();
+ manager.close();
+ done();
+ });
+ });
+ });
+
+ it('should open a new namespace after connection gets closed', function(done){
+ var manager = io.Manager();
+ var socket = manager.socket('/');
+ socket.on('connect', function() {
+ socket.disconnect();
+ }).on('disconnect', function() {
+ var foo = manager.socket('/foo');
+ foo.on('connect', function() {
+ foo.disconnect();
+ manager.close();
+ done();
+ });
+ });
+ });
+
+ it('should reconnect by default', function(done){
+ var socket = io({ forceNew: true });
+ socket.io.on('reconnect', function() {
+ socket.disconnect();
+ done();
+ });
+
+ setTimeout(function() {
+ socket.io.engine.close();
+ }, 500);
+ });
+
+ it('should reconnect manually', function(done) {
+ var socket = io({ forceNew: true });
+ socket.once('connect', function() {
+ socket.disconnect();
+ }).once('disconnect', function() {
+ socket.once('connect', function() {
+ socket.disconnect();
+ done();
+ });
+ socket.connect();
+ });
+ });
+
+ it('should reconnect automatically after reconnecting manually', function(done){
+ var socket = io({ forceNew: true });
+ socket.once('connect', function() {
+ socket.disconnect();
+ }).once('disconnect', function() {
+ socket.on('reconnect', function() {
+ socket.disconnect();
+ done();
+ });
+ socket.connect();
+ setTimeout(function() {
+ socket.io.engine.close();
+ }, 500);
+ });
+ });
+
+ it('should attempt reconnects after a failed reconnect', function(done){
+ var manager = io.Manager({ reconnection: true, timeout: 0, reconnectionAttempts: 2, reconnectionDelay: 10 });
+ var socket = manager.socket('/timeout');
+ socket.once('reconnect_failed', function() {
+ var reconnects = 0;
+ var reconnectCb = function() {
+ reconnects++;
+ };
+
+ manager.on('reconnect_attempt', reconnectCb);
+ manager.on('reconnect_failed', function failed() {
+ expect(reconnects).to.be(2);
+ socket.close();
+ manager.close();
+ done();
+ });
+ socket.connect();
+ });
+ });
+
+ it('reconnect delay should increase every time', function(done){
+ var manager = io.Manager({ reconnection: true, timeout: 0, reconnectionAttempts: 5, reconnectionDelay: 10, randomizationFactor: 0.2 });
+ var socket = manager.socket('/timeout');
+ var reconnects = 0, increasingDelay = true, startTime, prevDelay = 0;
+
+ socket.on('connect_error', function() {
+ startTime = new Date().getTime();
+ });
+ socket.on('reconnect_attempt', function() {
+ reconnects++;
+ var currentTime = new Date().getTime();
+ var delay = currentTime - startTime;
+ if (delay <= prevDelay) {
+ increasingDelay = false;
+ }
+ prevDelay = delay;
+ });
+
+ socket.on('reconnect_failed', function failed() {
+ expect(reconnects).to.be(5);
+ expect(increasingDelay).to.be.ok();
+ socket.close();
+ manager.close();
+ done();
+ });
+ });
+
+ it('reconnect event should fire in socket', function(done){
+ var socket = io({ forceNew: true });
+
+ socket.on('reconnect', function() {
+ socket.disconnect();
+ done();
+ });
+
+ setTimeout(function() {
+ socket.io.engine.close();
+ }, 500);
+ });
+
+ it('should not reconnect when force closed', function(done){
+ var socket = io('/invalid', { forceNew: true, timeout: 0, reconnectionDelay: 10 });
+ socket.on('connect_error', function() {
+ socket.on('reconnect_attempt', function() {
+ expect().fail();
+ });
+ socket.disconnect();
+ // set a timeout to let reconnection possibly fire
+ setTimeout(function() {
+ done();
+ }, 500);
+ });
+ });
+
+ it('should stop reconnecting when force closed', function(done){
+ var socket = io('/invalid', { forceNew: true, timeout: 0, reconnectionDelay: 10 });
+ socket.once('reconnect_attempt', function() {
+ socket.on('reconnect_attempt', function() {
+ expect().fail();
+ });
+ socket.disconnect();
+ // set a timeout to let reconnection possibly fire
+ setTimeout(function() {
+ done();
+ }, 500);
+ });
+ });
+
+ it('should stop reconnecting on a socket and keep to reconnect on another', function(done){
+ var manager = io.Manager();
+ var socket1 = manager.socket('/');
+ var socket2 = manager.socket('/asd');
+
+ manager.on('reconnect_attempt', function() {
+ socket1.on('connect', function() {
+ expect().fail();
+ });
+ socket2.on('connect', function() {
+ setTimeout(function() {
+ socket2.disconnect();
+ manager.disconnect();
+ done();
+ }, 500);
+ });
+ socket1.disconnect();
+ });
+
+ setTimeout(function() {
+ manager.engine.close();
+ }, 1000);
+ });
+
+ it('should try to reconnect twice and fail when requested two attempts with immediate timeout and reconnect enabled', function(done) {
+ var manager = io.Manager({ reconnection: true, timeout: 0, reconnectionAttempts: 2, reconnectionDelay: 10 });
+ var socket;
+
+ var reconnects = 0;
+ var reconnectCb = function() {
+ reconnects++;
+ };
+
+ manager.on('reconnect_attempt', reconnectCb);
+ manager.on('reconnect_failed', function failed() {
+ expect(reconnects).to.be(2);
+ socket.close();
+ manager.close();
+ done();
+ });
+
+ socket = manager.socket('/timeout');
+ });
+
+ it('should fire reconnect_* events on socket', function(done) {
+ var manager = io.Manager({ reconnection: true, timeout: 0, reconnectionAttempts: 2, reconnectionDelay: 10 });
+ var socket = manager.socket('/timeout_socket');
+
+ var reconnects = 0;
+ var reconnectCb = function(attempts) {
+ reconnects++;
+ expect(attempts).to.be(reconnects);
+ };
+
+ socket.on('reconnect_attempt', reconnectCb);
+ socket.on('reconnect_failed', function failed() {
+ expect(reconnects).to.be(2);
+ socket.close();
+ manager.close();
+ done();
+ });
+ });
+
+ it('should fire error on socket', function(done) {
+ var manager = io.Manager({ reconnection: true });
+ var socket = manager.socket('/timeout_socket');
+
+ socket.on('error', function(data) {
+ expect(data.code).to.be('test');
+ socket.close();
+ manager.close();
+ done();
+ });
+
+ socket.on('connect', function() {
+ manager.engine.onPacket({ type: 'error', data: 'test' });
+ });
+ });
+
+ it('should fire reconnecting (on socket) with attempts number when reconnecting twice', function(done) {
+ var manager = io.Manager({ reconnection: true, timeout: 0, reconnectionAttempts: 2, reconnectionDelay: 10 });
+ var socket = manager.socket('/timeout_socket');
+
+ var reconnects = 0;
+ var reconnectCb = function(attempts) {
+ reconnects++;
+ expect(attempts).to.be(reconnects);
+ };
+
+ socket.on('reconnecting', reconnectCb);
+ socket.on('reconnect_failed', function failed() {
+ expect(reconnects).to.be(2);
+ socket.close();
+ manager.close();
+ done();
+ });
+ });
+
+ it('should not try to reconnect and should form a connection when connecting to correct port with default timeout', function(done) {
+ var manager = io.Manager({ reconnection: true, reconnectionDelay: 10 });
+ var cb = function() {
+ socket.close();
+ expect().fail();
+ };
+ manager.on('reconnect_attempt', cb);
+
+ var socket = manager.socket('/valid');
+ socket.on('connect', function(){
+ // set a timeout to let reconnection possibly fire
+ setTimeout(function() {
+ socket.close();
+ manager.close();
+ done();
+ }, 1000);
+ });
+ });
+
+ // Ignore incorrect connection test for old IE due to no support for
+ // `script.onerror` (see: http://requirejs.org/docs/api.html#ieloadfail)
+ if (!global.document || hasCORS) {
+ it('should try to reconnect twice and fail when requested two attempts with incorrect address and reconnect enabled', function(done) {
+ var manager = io.Manager('http://localhost:3940', { reconnection: true, reconnectionAttempts: 2, reconnectionDelay: 10 });
+ var socket = manager.socket('/asd');
+ var reconnects = 0;
+ var cb = function() {
+ reconnects++;
+ };
+
+ manager.on('reconnect_attempt', cb);
+
+ manager.on('reconnect_failed', function() {
+ expect(reconnects).to.be(2);
+ socket.disconnect();
+ manager.close();
+ done();
+ });
+ });
+
+ it('should not try to reconnect with incorrect port when reconnection disabled', function(done) {
+ var manager = io.Manager('http://localhost:9823', { reconnection: false });
+ var cb = function() {
+ socket.close();
+ expect().fail();
+ };
+ manager.on('reconnect_attempt', cb);
+
+ manager.on('connect_error', function(){
+ // set a timeout to let reconnection possibly fire
+ setTimeout(function() {
+ socket.disconnect();
+ manager.close();
+ done();
+ }, 1000);
+ });
+
+ var socket = manager.socket('/invalid');
+ });
+ }
+
+ it('should emit date as string', function(done){
+ var socket = io({ forceNew: true });
+ socket.on('takeDate', function(data) {
+ socket.close();
+ expect(data).to.be.a('string');
+ done();
+ });
+ socket.emit('getDate');
+ });
+
+ it('should emit date in object', function(done){
+ var socket = io({ forceNew: true });
+ socket.on('takeDateObj', function(data) {
+ socket.close();
+ expect(data).to.be.an('object');
+ expect(data.date).to.be.a('string');
+ done();
+ });
+ socket.emit('getDateObj');
+ });
+
+ if (!global.Blob && !global.ArrayBuffer) {
+ it('should get base64 data as a last resort', function(done) {
+ var socket = io({ forceNew: true });
+ socket.on('takebin', function(a) {
+ socket.disconnect();
+ expect(a.base64).to.be(true);
+ expect(a.data).to.eql('YXNkZmFzZGY=');
+ done();
+ });
+ socket.emit('getbin');
+ });
+ }
+
+ if (global.ArrayBuffer) {
+ var base64 = require('base64-arraybuffer');
+
+ it('should get binary data (as an ArrayBuffer)', function(done){
+ var socket = io({ forceNew: true });
+ socket.emit('doge');
+ socket.on('doge', function(buffer){
+ expect(buffer instanceof ArrayBuffer).to.be(true);
+ socket.disconnect();
+ done();
+ });
+ });
+
+ it('should send binary data (as an ArrayBuffer)', function(done){
+ var socket = io({ forceNew: true });
+ socket.on('buffack', function(){
+ socket.disconnect();
+ done();
+ });
+ var buf = base64.decode('asdfasdf');
+ socket.emit('buffa', buf);
+ });
+
+ it('should send binary data (as an ArrayBuffer) mixed with json', function(done) {
+ var socket = io({ forceNew: true });
+ socket.on('jsonbuff-ack', function() {
+ socket.disconnect();
+ done();
+ });
+ var buf = base64.decode('howdy');
+ socket.emit('jsonbuff', {hello: 'lol', message: buf, goodbye: 'gotcha'});
+ });
+
+ it('should send events with ArrayBuffers in the correct order', function(done) {
+ var socket = io({ forceNew: true });
+ socket.on('abuff2-ack', function() {
+ socket.disconnect();
+ done();
+ });
+ var buf = base64.decode('abuff1');
+ socket.emit('abuff1', buf);
+ socket.emit('abuff2', 'please arrive second');
+ });
+ }
+
+ if (global.Blob && null != textBlobBuilder('xxx')) {
+ it('should send binary data (as a Blob)', function(done){
+ var socket = io({ forceNew: true });
+ socket.on('back', function(){
+ socket.disconnect();
+ done();
+ });
+ var blob = textBlobBuilder('hello world');
+ socket.emit('blob', blob);
+ });
+
+ it('should send binary data (as a Blob) mixed with json', function(done) {
+ var socket = io({ forceNew: true });
+ socket.on('jsonblob-ack', function() {
+ socket.disconnect();
+ done();
+ });
+ var blob = textBlobBuilder('EEEEEEEEE');
+ socket.emit('jsonblob', {hello: 'lol', message: blob, goodbye: 'gotcha'});
+ });
+
+ it('should send events with Blobs in the correct order', function(done) {
+ var socket = io({ forceNew: true });
+ socket.on('blob3-ack', function() {
+ socket.disconnect();
+ done();
+ });
+ var blob = textBlobBuilder('BLOBBLOB');
+ socket.emit('blob1', blob);
+ socket.emit('blob2', 'second');
+ socket.emit('blob3', blob);
+ });
+ }
+});
diff --git a/test/index.js b/test/index.js
new file mode 100644
index 0000000..1ec21cc
--- /dev/null
+++ b/test/index.js
@@ -0,0 +1,19 @@
+
+var env = require('./support/env');
+
+// whitelist some globals to avoid warnings
+global.__eio = null;
+global.___eio = null;
+global.WEB_SOCKET_LOGGER = null;
+global.WEB_SOCKET_SUPPRESS_CROSS_DOMAIN_SWF_ERROR = null;
+global.WEB_SOCKET_DISABLE_AUTO_INITIALIZATION = null;
+global.WEB_SOCKET_SWF_LOCATION = null;
+
+require('./url');
+
+// browser only tests
+if (env.browser) {
+ require('./connection');
+ require('./socket');
+}
+
diff --git a/test/socket.js b/test/socket.js
new file mode 100644
index 0000000..2ac286e
--- /dev/null
+++ b/test/socket.js
@@ -0,0 +1,45 @@
+var expect = require('expect.js');
+var io = require('../');
+
+describe('socket', function(){
+ it('should have an accessible socket id equal to the engine.io socket id', function(done) {
+ var socket = io({ forceNew: true });
+ socket.on('connect', function(){
+ expect(socket.id).to.be.ok();
+ expect(socket.id).to.eql(socket.io.engine.id);
+ socket.disconnect();
+ done();
+ });
+ });
+
+ it('clears socket.id upon disconnection', function(done){
+ var socket = io({ forceNew: true });
+ socket.on('connect', function(){
+ socket.on('disconnect', function(){
+ expect(socket.id).to.not.be.ok();
+ done();
+ });
+
+ socket.disconnect();
+ });
+ });
+
+ it('should change socket.id upon reconnection', function(done){
+ var socket = io({ forceNew: true });
+ socket.on('connect', function(){
+ var id = socket.id;
+
+ socket.on('reconnect_attempt', function(){
+ expect(socket.id).to.not.be.ok();
+ });
+
+ socket.on('reconnect', function() {
+ expect(socket.id).to.not.eql(id);
+ socket.disconnect();
+ done();
+ });
+
+ socket.io.engine.close();
+ });
+ });
+});
diff --git a/test/support/env.js b/test/support/env.js
new file mode 100644
index 0000000..ad5ae28
--- /dev/null
+++ b/test/support/env.js
@@ -0,0 +1,6 @@
+// WARNING this is bad practice
+// we only do this in our tests because we need to test engine.io-client
+// support in browsers and in node.js
+// some tests do not yet work in both
+exports.browser = !!global.window;
+exports.node = !exports.browser;
diff --git a/test/support/server.js b/test/support/server.js
new file mode 100644
index 0000000..8ad2433
--- /dev/null
+++ b/test/support/server.js
@@ -0,0 +1,131 @@
+
+// this is a test server to support tests which make requests
+
+var io = require('socket.io');
+var server = io(process.env.ZUUL_PORT);
+var expect = require('expect.js');
+
+server.of('/foo').on('connection', function(){
+ // register namespace
+});
+
+server.of('/timeout_socket').on('connection', function(){
+ // register namespace
+});
+
+server.of('/valid').on('connection', function(){
+ // register namespace
+});
+
+server.of('/asd').on('connection', function(){
+ // register namespace
+});
+
+server.on('connection', function(socket){
+ // simple test
+ socket.on('hi', function(){
+ socket.emit('hi');
+ });
+
+ // ack tests
+ socket.on('ack', function(){
+ socket.emit('ack', function(a, b){
+ if (a == 5 && b.test) {
+ socket.emit('got it');
+ }
+ });
+ });
+
+ socket.on('getAckDate', function(data, cb){
+ cb(new Date());
+ });
+
+ socket.on('getDate', function(){
+ socket.emit('takeDate', new Date());
+ });
+
+ socket.on('getDateObj', function(){
+ socket.emit('takeDateObj', { date: new Date() });
+ });
+
+ socket.on('getUtf8', function() {
+ socket.emit('takeUtf8', 'てすと');
+ socket.emit('takeUtf8', 'Я Б Г Д Ж Й');
+ socket.emit('takeUtf8', 'Ä ä Ü ü ß');
+ socket.emit('takeUtf8', 'utf8 — string');
+ socket.emit('takeUtf8', 'utf8 — string');
+ });
+
+ // false test
+ socket.on('false', function(){
+ socket.emit('false', false);
+ });
+
+ // binary test
+ socket.on('doge', function(){
+ buf = new Buffer('asdfasdf', 'utf8');
+ socket.emit('doge', buf);
+ });
+
+ // expect receiving binary to be buffer
+ socket.on('buffa', function(a){
+ if (Buffer.isBuffer(a)) socket.emit('buffack');
+ });
+
+ // expect receiving binary with mixed JSON
+ socket.on('jsonbuff', function(a) {
+ expect(a.hello).to.eql('lol');
+ expect(Buffer.isBuffer(a.message)).to.be(true);
+ expect(a.goodbye).to.eql('gotcha');
+ socket.emit('jsonbuff-ack');
+ });
+
+ // expect receiving buffers in order
+ var receivedAbuff1 = false;
+ socket.on('abuff1', function(a) {
+ expect(Buffer.isBuffer(a)).to.be(true);
+ receivedAbuff1 = true;
+ });
+ socket.on('abuff2', function(a) {
+ expect(receivedAbuff1).to.be(true);
+ socket.emit('abuff2-ack');
+ });
+
+ // expect sent blob to be buffer
+ socket.on('blob', function(a){
+ if (Buffer.isBuffer(a)) socket.emit('back');
+ });
+
+ // expect sent blob mixed with json to be buffer
+ socket.on('jsonblob', function(a) {
+ expect(a.hello).to.eql('lol');
+ expect(Buffer.isBuffer(a.message)).to.be(true);
+ expect(a.goodbye).to.eql('gotcha');
+ socket.emit('jsonblob-ack');
+ });
+
+ // expect blobs sent in order to arrive in correct order
+ var receivedblob1 = false;
+ var receivedblob2 = false;
+ socket.on('blob1', function(a) {
+ expect(Buffer.isBuffer(a)).to.be(true);
+ receivedblob1 = true;
+ });
+ socket.on('blob2', function(a) {
+ expect(receivedblob1).to.be(true);
+ expect(a).to.eql('second');
+ receivedblob2 = true;
+ });
+ socket.on('blob3', function(a) {
+ expect(Buffer.isBuffer(a)).to.be(true);
+ expect(receivedblob1).to.be(true);
+ expect(receivedblob2).to.be(true);
+ socket.emit('blob3-ack');
+ });
+
+ // emit buffer to base64 receiving browsers
+ socket.on('getbin', function() {
+ buf = new Buffer('asdfasdf', 'utf8');
+ socket.emit('takebin', buf);
+ });
+});
diff --git a/test/url.js b/test/url.js
new file mode 100644
index 0000000..3432b1f
--- /dev/null
+++ b/test/url.js
@@ -0,0 +1,61 @@
+
+var loc = {};
+var url = require('../lib/url');
+var expect = require('expect.js');
+
+describe('url', function(){
+
+ it('works with undefined', function(){
+ loc.hostname = 'woot.com';
+ loc.protocol = 'https:';
+ loc.port = 4005;
+ loc.host = loc.hostname + ':' + loc.port;
+ var parsed = url(undefined, loc);
+ expect(parsed.host).to.be('woot.com');
+ expect(parsed.protocol).to.be('https');
+ expect(parsed.port).to.be('4005');
+ });
+
+ it('works with relative paths', function(){
+ loc.hostname = 'woot.com';
+ loc.protocol = 'https:';
+ var parsed = url('/test', loc);
+ expect(parsed.host).to.be('woot.com');
+ expect(parsed.protocol).to.be('https');
+ });
+
+ it('works with no protocol', function(){
+ loc.protocol = 'http:';
+ var parsed = url('localhost:3000', loc);
+ expect(parsed.host).to.be('localhost');
+ expect(parsed.port).to.be('3000');
+ expect(parsed.protocol).to.be('http');
+ });
+
+ it('works with no schema', function(){
+ loc.protocol = 'http:';
+ var parsed = url('//localhost:3000', loc);
+ expect(parsed.host).to.be('localhost');
+ expect(parsed.port).to.be('3000');
+ expect(parsed.protocol).to.be('http');
+ });
+
+ it('forces ports for unique url ids', function(){
+ var id1 = url('http://google.com:80/');
+ var id2 = url('http://google.com/');
+ var id3 = url('https://google.com/');
+ expect(id1.id).to.be(id2.id);
+ expect(id1.id).to.not.be(id3.id);
+ expect(id2.id).to.not.be(id3.id);
+ });
+
+ it('identifies the namespace', function(){
+ loc.protocol = 'http:';
+ loc.hostname = 'woot.com';
+
+ expect(url('/woot', loc).path).to.be('/woot');
+ expect(url('http://google.com').path).to.be('/');
+ expect(url('http://google.com/').path).to.be('/');
+ });
+
+});
--
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